Length Standard. Gauge Blocks. Catalog No. E12014. Small Tool Instruments and Data Management

Small Tool Instruments and Data Management Length Standard Gauge Blocks Catalog No. E204

Precision gauge blocks are the primary standards vital to dimensional quality control in the manufacture of parts. Mitutoyo offers a complete selection of gauge blocks available in a choice of rectangular or square, metric or inch and steel or CERA (ceramic) types. Mitutoyo CERA Blocks are some of the finest gauge blocks available anywhere in the world. Steel gauge 2

blocks are made of a special steel alloy, while CERA Blocks are made of zirconia ceramic. Both types are prepared by highly advanced techniques in the most modern facilities to produce the fine characteristics required of gauge blocks. Tungsten carbide gauge blocks have the advantage of being harder and more wear resistant than steel. CONTENTS Mitutoyo Miyazaki Plant...4 Traceability System...5 Calibration laboratories worldwide...6 Accuracies of Mitutoyo Gauge Blocks...8 Features of Gauge Blocks...0 Gauge Blocks with a Calibrated Coefficient of Thermal Expansion... ZERO CERA Blocks... Metric/Inch Rectangular Gauge Block Sets...2 Micrometer Inspection Gauge Block Sets...6 Individual Metric Rectangular Gauge Blocks...8 Individual Inch Rectangular Gauge Blocks...20 Rectangular Gauge Block Accessories...22 Accessories for Gauge Blocks over 00mm...24 Metric/Inch Square Gauge Block Sets...26 Individual Metric Square Gauge Blocks...28 Individual Inch Square Gauge Blocks...2 Square Gauge Block Accessories...30 Step Master...32 Custom-made Blocks & Gages...33 Maintenance Kit for Gauge Blocks...34 Ceraston...35 Quick Guide to Precision Measuring Instruments...36 Gauge Block Comparator GBCD-250...38 Gauge Block Comparator GBCD-00A...38 Automatic Gauge Block Interferometer GBI...3 3

Mitutoyo Miyazaki Plant The Miyazaki Plant is located in Tano-cho in the Miyazaki Sun Technopolis and began operation as Miyazaki Mitutoyo Precision Co., Ltd. in 85. The plant is dedicated itself to the production of gauge blocks, the reference of precision measurement, and their applied gages. It prides itself on a reputation for quality and accuracy both in Japan and overseas. Far resting on its laurel, however, the plant is driven by a sense of a mission to continue to contribute to society through precision measurement. In October 85, the Miyazaki Plant began operating, integrating the production of gauge blocks (the length standard and the basis to the traceability of all Mitutoyo products) and the production of Height Master (the gauge block applied instrument). The Miyazaki Plant is now working to further improve the ultra precision machining /engineering expertise which has been accumulated over the years. The development of CERA Blocks or ceramic gauge blocks, and digital Height Master, etc. is one of the results of our challenge toward the production of high-tech products. Company outline Foundation: October 85 Number of employees: 85 Total site area: 44,000m 2 Floor area of buildings: 7,400m 2 Underground measurement laboratories: Total area/6m 2 Maintained temperature: 20 C to ±0.5 C Light wave interferometer: Mitutoyo model, 000mm (±0.μm) Zeiss model, 00mm (±0.02μm) Major products Gauge blocks: Rectangular and square types of gauge blocks. Recently developed are rust free ceramic gauge blocks CERA Block which are gaining a strong reputation both in Japan and overseas. Output: 00,000 pcs/month Height master: This is a stack of gauge blocks combined with a micrometer for accurate and efficient setting of any desired height, height masters are also digitalize for further easiness of use. Output: 300pcs/month 4

Traceability system Traceability system Mitutoyo has a traceability system made possible through an in-house calibration organization certified by the ISO/IEC 7025 international standard, with length standards directly related to national standards (atomic clock synchronized to UTC and the optical frequency comb) at the highest level. National standards are mutually recognized by CIPM, and the certified calibration organization is mutually recognized by ILAC, so that the establishment and maintenance of traceability for Mitutoyo products is achieved both in Japan and overseas. Certificate of JCSS accredited laboratory (Mitutoyo Utsunomiya Measurement Standards Calibration Center) Traceability of length National Metrology Institute of Japan / National Institute of Advanced Industrial Science and Technology (NMIJ/AIST) The atomic clock synchronized to UTC and the optical frequency comb <National (Primary) Standard> Traceability of temperature NMIJ/AIST Temperature fixed points <National (Primary)Standard> Mitutoyo Utsunomiya Measurement Standards Calibration Center (JCSS Accredited Cal. Lab. No.003) 633nm Iodine Stabilized He-Ne Laser <Secondary Standard> Mitutoyo Miyazaki Plant (JCSS Accredited Cal.Lab. No.0030) 633nm Stabilized He-Ne Laser <Laboratory Reference Standard> Mitutoyo Utsunomiya Measurement Standards Calibration Center (JCSS Accredited Cal. Lab. No.003) 633nm Stabilized He-Ne Laser JCSS Accredited Cal.Lab. Stabilized He-Ne Laser <Laboratory Reference Standard> JEMIC Temperature fixed point <National (Sub-Primary) Standard> JCSS Accredited Cal.Lab. Temperature fixed point/ Platinum resistance thermometer <Secondary Standard> Mitutoyo Utsunomiya Measurement Standards Cal. Center (JCSS Accredited Cal. Lab. No.003) Standard Gauge Block <Laboratory Reference Standard> Mitutoyo Utsunomiya Measurement Standards Cal. Center (JCSS Accredited Cal. Lab. No.003) Temperature fixed point (Triple point of water)/ Platinum resistance thermometer <Laboratory Reference Standard> Mitutoyo Techno Service Business Division (JCSS Accredited Cal.Lab. No.086) Standard Gauge Block/Step Gage Mitutoyo Utsunomiya Measurement Standards Cal. Center (JCSS Accredited Cal. Lab. No.003) Standard Gauge Block/ Micrometer Standard/Step Gage Mitutoyo Hiroshima Calibration Center (JCSS Accredited Cal.Lab. No.00) Standard Gauge Block/ Micrometer Standard/Step Gage <Laboratory Reference Standard> Working Standard Step Gage Gauge Block Ring Gage Dial Gage Tester Standard Scale Laser Length Measuring Machine Optical Flat/Parallel Measuring Instrument Coordinate Measuring Machine Scale unit Precision Sensors Measuring Tool Form Measuring Machine Vision Measuring Machine Optical Measuring Machine Thermometer Note: This chart is a simplified representation of Mitutoyo's overall traceability system. Detailed traceability charts are published for each product. 5

Calibration laboratories worldwide Calibration laboratories worldwide Mitutoyo has a system allowing comprehensive support for the calibration of precision measuring products in the global market. In order to provide calibration services on a global basis, Mitutoyo has calibration laboratories that have received ISO/IEC 7025 certification, which is an international standard, from the accredited organizations in each of the countries in which Mitutoyo operates and subsidiaries are located, both in Japan and overseas. National metrology institute Japan Singapore, Indonesia, Thailand, Vietnam Malaysia Taiwan India NMIJ/ AIST ILAC <MRA> A STAR NML-SIRIM NML NPLI CHINA NIM Accreditation body IAJapan/NITE JCSS APLAC <MRA> SAC STANDARDS MALAYSIA TAF NABL CNCA CNAS Accredited calibration laboratory Mitutoyo Miyazaki Plant No.0030 Mitutoyo Utsunomiya Measurement Standards Cal.Center No.003 Mitutoyo Hiroshima Cal.Center * 2 No.00 Mitutoyo Kawasaki Cal.Center (Force) No.0086 Mitutoyo Techno Service Business Division No.086 Mitutoyo Asia Pacific * 2 No.LA-6-002-C Mitutoyo Indonesia * 2 No.LA-6-002-C- Mitutoyo Thailand * 2 No.LA-6-002-C-2 Mitutoyo Thailand (Cholburi Branch) * 2 No.LA-6-002-C-2- Mitutoyo Vietnam (Ho Chi Minh City Branch) No.LA-6-002-C-4 Mitutoyo Vietnam No.LA-6-002-C-5 Mitutoyo Malaysia * 2 No.SAMM52 Mitutoyo Taiwan * 2 No.0336 Mitutoyo South Asia * 2 No.C-034 Mitutoyo Shanghai No.CNASL5506 * Length and Temperature * 2 Length and Hardness No mark is only length AIST: National Institute of Advanced Industrial Science and Technology NMIJ: National Metrology Institute of Japan JCSS: Japan Calibration Service System NITE: National Institute of Technology and Evaluation IAJapan: International Accreditation Japan A STAR: Agency for Science, Technology and Research, Singapore SAC: Singapore Accreditation Council NML: National Measurement Laboratory TAF: Taiwan Accreditation Foundation NML-SIRIM: National Metrology Laboratory, Standards and Industrial Research Institute of Malaysia STANDARDS: Department of Standards Malaysia MALAYSIA NIST: National Institute of Standards and Technology NIM: National Institute of Metrology, China CNCA: Certification and Accreditation Administration of the People's Republic of China CNAS: China National Accreditation Service A2LA: American Association for Laboratory Accreditation NRC-INMS: National Research Council of Canada-Institute for National Measurement Standards CLAS: Calibration Laboratory Assessment Service SCC: Standards Council of Canada CENAM: Centro Nacional de Metrologi a EMA: Entidad Mexicana de Acreditacio n, a.c. UKAS: United Kingdom Accreditation Service NMi: Nederlands Meetinstituut RvA: Raad voor Accreditatie PTB: Physikalisch-Technische Bundesanstalt DAkkS: Deutsche Akkreditierungsstelle GmbH METAS: The Swiss Federal Office of Metrology and Accreditation SAS: Swiss Accreditation Service IMGC: Istituto di Metrologia GUSTAVO COLONNETTI ACCREDIA: L NTE ITALIANO DI ACCREDITAMENTO SP: Swedish National Testing and Research Institute SWEDAC: Swedish Board for Accreditation and Conformity Assessment INMETRO: Instituto Nacional de Metrologia Normalizacao e Qualidade Industrial RBC: Rede Brasileira de Calibracao INTI: Instituto Nacional de Tecnologia Industrial OAA: Organismo Argentino de Acreditaci NPL: National Physical Laboratory NPLI: National Physical Laboratory of India NABL: National Accreditation Board for Testing and Calibration Laboratories (ILAC): International Laboratory Accreditation Cooperation (APLAC): Asia-Pacific Laboratory Accreditation Cooperation (EA): European Accreditation Cooperation (MRA): Mutual Recognition Arrangement #: Accreditation No. The above is information of domestic and international bases where Mitutoyo provides the accredited calibration service having received ISO/IEC 7025 certification. 6

USA Canada Mexico UK The Netherlands Germany Switzerland Italy Sweden Hungary Brazil Argentina NIST NRC- INMS CENAM NPL VSL PTB METAS INRiM SP MKEH INMETRO INTI A2LA CLAS/ SCC EA EMA UKAS RvA DAkkS SAS ACCREDIA SWEDAC NAT RBC OAA <MRA> Mitutoyo Argentina No.LC 00 Mitutoyo Sul Americana * 2 No.03 Mitutoyo Hungary NAT-2-0276/2008 Mitutoyo Scandinavia No.74 Mitutoyo Italiana LAT N. 07 Mitutoyo Schweiz SCS 074 Mitutoyo Messgeräte D-K-506-0-00 Mitutoyo Nederland No.K 086 Mitutoyo UK * 2 No.0332 Mitutoyo Mexicana (Hardness) No.DZA-0 Mitutoyo Mexicana (Length) No.D-45 Mitutoyo Canada * 2 No.2003-05 Mitutoyo America Field Service * 2 No.643.0 Mitutoyo America (Elk Grove) * No.0750.0 7

Accuracies of Mitutoyo Gauge Blocks As a world-leading precision measuring equipment manufacturer, Mitutoyo is certified by the Japanese government as an accredited calibration laboratory, which means that the accuracy of its gauge blocks is guaranteed through traceability to the Metrology Management Center of the National Institute of Advanced Industrial Science and Technology (AIST). ACCURACY SPECIFICATIONS: JIS B 7506-2004 (JAPAN) Grade K Grade 0 Nominal length (mm) Limit deviation of Tolerance for the Limit deviation of Tolerance for the length at any point variation in length length at any point variation in length from 0.5 up to 0 ±0.20µm 0.05µm ±0.2µm 0.0µm over 0 up to 25 ±0.30µm 0.05µm ±0.4µm 0.0µm over 25 up to 50 ±0.40µm 0.06µm ±0.20µm 0.0µm over 50 up to 75 ±0.50µm 0.06µm ±0.25µm 0.2µm over 75 up to 00 ±0.60µm 0.07µm ±0.30µm 0.2µm over 00 up to 50 ±0.80µm 0.08µm ±0.40µm 0.4µm over 50 up to 200 ±.00µm 0.0µm ±0.50µm 0.6µm over 200 up to 250 ±.20µm 0.0µm ±0.60µm 0.6µm over 250 up to 300 ±.40µm 0.0µm ±0.70µm 0.8µm over 300 up to 400 ±.80µm 0.2µm ±0.0µm 0.20µm over 400 up to 500 ±2.20µm 0.4µm ±.0µm 0.25µm over 500 up to 600 ±2.60µm 0.6µm ±.30µm 0.25µm over 600 up to 700 ±3.00µm 0.8µm ±.50µm 0.30µm over 700 up to 800 ±3.40µm 0.20µm ±.70µm 0.30µm over 800 up to 00 ±3.80µm 0.20µm ±.0µm 0.35µm over 00 up to 000 ±4.20µm 0.25µm ±2.00µm 0.40µm ACCURACY SPECIFICATIONS: BS 43: Part : 3 (UK) Nominal length (inch) Tolerance on deviation of measured central length Grade K Grade 0 Tolerance on Parallelism Flatness deviation of measured central length Parallelism Flatness over 0 up to 0.4 ±5µin 2µin 2µin ±5µin 4µin 4µin over 0.4 up to ±6µin 2µin 2µin ±6µin 4µin 4µin over up to 2 ±8µin 3µin 2µin ±8µin 4µin 4µin over 2 up to 3 ±0µin 3µin 2µin ±0µin 5µin 4µin over 3 up to 4 ±2µin 3µin 2µin ±2µin 5µin 4µin Nominal length (mm) Tolerance on deviation of measured central length Grade K Grade 0 Tolerance on Parallelism Flatness deviation of measured central length Parallelism Flatness over 0 up to 0 ±0.2µm 0.05µm 0.05µm ±0.2µm 0.0µm 0.0µm over 0 up to 25 ±0.5µm 0.05µm 0.05µm ±0.5µm 0.0µm 0.0µm over 25 up to 50 ±0.20µm 0.06µm 0.05µm ±0.20µm 0.0µm 0.0µm over 50 up to 75 ±0.25µm 0.06µm 0.05µm ±0.25µm 0.2µm 0.0µm over 75 up to 00 ±0.30µm 0.07µm 0.05µm ±0.30µm 0.2µm 0.0µm ACCURACY SPECIFICATIONS: ASME B8..-2002 (USA) Grade K Grade 00 Grade 0 Grade Grade 2 Nominal Limit Tolerance Limit Tolerance Limit Tolerance Limit Tolerance Limit Tolerance deviations for the deviations for the deviations for the deviations for the deviations for the length (inch) of length at variation of length at variation of length at variation of length at variation of length at variation any point in length any point in length any point in length any point in length any point in length up to.05 ±2µin 2µin ±4µin 2µin ±6µin 4µin ±2µin 6µin ±24µin 2µin over.05 up to.4 ±0µin 2µin ±3µin 2µin ±5µin 4µin ±8µin 6µin ±8µin 2µin over.45 up to ±2µin 2µin ±3µin 2µin ±6µin 4µin ±2µin 6µin ±24µin 2µin over up to 2 ±6µin 2µin ±4µin 2µin ±8µin 4µin ±6µin 6µin ±32µin 2µin over 2 up to 3 ±20µin 2µin ±5µin 3µin ±0µin 4µin ±20µin 6µin ±40µin 4µin over 3 up to 4 ±24µin 3µin ±6µin 3µin ±2µin 5µin ±24µin 8µin ±48µin 4µin over 4 up to 5 ±32µin 3µin ±8µin 3µin ±6µin 5µin ±32µin 8µin ±64µin 6µin over 5 up to 6 ±32µin 3µin ±8µin 3µin ±6µin 5µin ±32µin 8µin ±64µin 6µin over 6 up to 7 ±40µin 4µin ±0µin 4µin ±20µin 6µin ±40µin 0µin ±80µin 6µin over 7 up to 8 ±40µin 4µin ±0µin 4µin ±20µin 6µin ±40µin 0µin ±80µin 6µin over 8 up to 0 ±48µin 4µin ±2µin 4µin ±24µin 6µin ±48µin 0µin ±04µin 8µin over 0 up to 2 ±56µin 4µin ±4µin 4µin ±28µin 7µin ±56µin 0µin ±2µin 20µin over 2 up to 6 ±72µin 5µin ±8µin 5µin ±36µin 8µin ±72µin 2µin ±44µin 20µin over 6 up to 20 ±88µin 6µin ±20µin 6µin ±44µin 0µin ±88µin 4µin ±76µin 24µin over 20 up to 24 ±04µin 6µin ±25µin 6µin ±52µin 0µin ±04µin 6µin ±200µin 28µin over 24 up to 28 ±20µin 7µin ±30µin 7µin ±60µin 2µin ±20µin 8µin ±240µin 28µin over 28 up to 32 ±36µin 8µin ±34µin 8µin ±68µin 2µin ±36µin 20µin ±260µin 32µin over 32 up to 36 ±52µin 8µin ±38µin 8µin ±76µin 4µin ±52µin 20µin ±300µin 36µin over 36 up to 40 ±60µin 0µin ±40µin 0µin ±80µin 6µin ±68µin 24µin ±320µin 40µin (at 20 C) Grade Grade 2 Nominal length (mm) Limit deviation of Tolerance for the Limit deviation of Tolerance for the length at any point variation in length length at any point variation in length from 0.5 up to 0 ±0.20µm 0.6µm ±0.45µm 0.30µm over 0 up to 25 ±0.30µm 0.6µm ±0.60µm 0.30µm over 25 up to 50 ±0.40µm 0.8µm ±0.80µm 0.30µm over 50 up to 75 ±0.50µm 0.8µm ±.00µm 0.35µm over 75 up to 00 ±0.60µm 0.20µm ±.20µm 0.35µm over 00 up to 50 ±0.80µm 0.20µm ±.60µm 0.40µm over 50 up to 200 ±.00µm 0.25µm ±2.00µm 0.40µm over 200 up to 250 ±.20µm 0.25µm ±2.40µm 0.45µm over 250 up to 300 ±.40µm 0.25µm ±2.80µm 0.50µm over 300 up to 400 ±.80µm 0.30µm ±3.60µm 0.50µm over 400 up to 500 ±2.20µm 0.35µm ±4.40µm 0.60µm over 500 up to 600 ±2.60µm 0.40µm ±5.00µm 0.70µm over 600 up to 700 ±3.00µm 0.45µm ±6.00µm 0.70µm over 700 up to 800 ±3.40µm 0.50µm ±6.50µm 0.80µm over 800 up to 00 ±3.80µm 0.50µm ±7.50µm 0.0µm over 00 up to 000 ±4.20µm 0.60µm ±8.00µm.00µm Nominal length (inch) Tolerance on deviation of measured central length Grade Grade 2 Tolerance on Parallelism Flatness deviation of measured central length (at 20 C) Parallelism Flatness over 0 up to 0.4 ±0µin 6µin 6µin ±20µin 2µin 0µin over 0.4 up to ±2µin 6µin 6µin ±25µin 2µin 0µin over up to 2 ±5µin 7µin 6µin ±30µin 2µin 0µin over 2 up to 3 ±20µin 7µin 6µin ±40µin 4µin 0µin over 3 up to 4 ±25µin 8µin 6µin ±50µin 4µin 0µin Nominal length (mm) Tolerance on deviation of measured central length Grade Grade 2 Tolerance on Parallelism Flatness deviation of measured central length (at 20 C) Parallelism Flatness over 0 up to 0 ±0.25µm 0.6µm 0.5µm ±0.50µm 0.30µm 0.25µm over 0 up to 25 ±0.30µm 0.6µm 0.5µm ±0.60µm 0.30µm 0.25µm over 25 up to 50 ±0.40µm 0.8µm 0.5µm ±0.80µm 0.30µm 0.25µm over 50 up to 75 ±0.50µm 0.8µm 0.5µm ±.00µm 0.35µm 0.25µm over 75 up to 00 ±0.60µm 0.20µm 0.5µm ±.20µm 0.35µm 0.25µm (at 20 C) Grade K Grade 00 Grade 0 Grade Grade 2 Nominal Limit Tolerance Limit Tolerance Limit Tolerance Limit Tolerance Limit Tolerance deviations for the deviations for the deviations for the deviations for the deviations for the length (mm) of length at variation of length at variation of length at variation of length at variation of length at variation any point in length any point in length any point in length any point in length any point in length up to 0.5 ±0.30µm 0.05µm ±0.0µm 0.05µm ±0.4µm 0.0µm ±0.30µm 0.6µm ±0.60µm 0.30µm over 0.5 up to 0 ±0.20µm 0.05µm ±0.07µm 0.05µm ±0.2µm 0.0µm ±0.20µm 0.6µm ±0.45µm 0.30µm over 0 up to 25 ±0.30µm 0.05µm ±0.07µm 0.05µm ±0.4µm 0.0µm ±0.30µm 0.6µm ±0.60µm 0.30µm over 25 up to 50 ±0.40µm 0.06µm ±0.0µm 0.06µm ±0.20µm 0.0µm ±0.40µm 0.8µm ±0.80µm 0.30µm over 50 up to 75 ±0.50µm 0.06µm ±0.2µm 0.06µm ±0.25µm 0.2µm ±0.50µm 0.8µm ±.00µm 0.35µm over 75 up to 00 ±0.60µm 0.07µm ±0.5µm 0.07µm ±0.30µm 0.2µm ±0.60µm 0.20µm ±.20µm 0.35µm over 00 up to 50 ±0.80µm 0.08µm ±0.20µm 0.08µm ±0.40µm 0.4µm ±0.80µm 0.20µm ±.60µm 0.40µm over 50 up to 200 ±.00µm 0.0µm ±0.25µm 0.0µm ±0.50µm 0.6µm ±.00µm 0.25µm ±2.00µm 0.40µm over 200 up to 250 ±.20µm 0.0µm ±0.30µm 0.0µm ±0.60µm 0.6µm ±.20µm 0.25µm ±2.40µm 0.45µm over 250 up to 300 ±.40µm 0.0µm ±0.35µm 0.0µm ±0.70µm 0.8µm ±.40µm 0.25µm ±2.80µm 0.50µm over 300 up to 400 ±.80µm 0.2µm ±0.45µm 0.2µm ±0.0µm 0.20µm ±.80µm 0.30µm ±3.60µm 0.50µm over 400 up to 500 ±2.20µm 0.4µm ±0.50µm 0.4µm ±.0µm 0.25µm ±2.20µm 0.35µm ±4.40µm 0.60µm over 500 up to 600 ±2.60µm 0.6µm ±0.65µm 0.6µm ±.30µm 0.25µm ±2.60µm 0.40µm ±5.00µm 0.70µm over 600 up to 700 ±3.00µm 0.8µm ±0.75µm 0.8µm ±.50µm 0.30µm ±3.00µm 0.45µm ±6.00µm 0.70µm over 700 up to 800 ±3.40µm 0.20µm ±0.85µm 0.20µm ±.70µm 0.30µm ±3.40µm 0.50µm ±6.50µm 0.80µm over 800 up to 00 ±3.80µm 0.20µm ±0.5µm 0.20µm ±.0µm 0.35µm ±3.80µm 0.50µm ±7.50µm 0.0µm over 00 up to 000 ±4.20µm 0.25µm ±.00µm 0.25µm ±2.00µm 0.40µm ±4.20µm 0.60µm ±8.00µm.00µm 8

Grade and Application The following table can be used to select the gauge block grade according to usage (specified by DIN86, BS43, and JIS B 7506). Applications Grade Mounting tools and cutters 2 Workshop use Manufacturing gages Calibrating instruments or 2 Inspecting mechanical parts, tools, etc. or 2 Inspection use Checking the accuracy of gages Calibrating instruments 0 or Calibration use Checking the accuracy of gauge blocks for workshop Checking the accuracy of gauge blocks for inspection K or 0 Checking the accuracy of instruments Reference use Checking the accuracy of gauge blocks for calibration For academic research K Grade and Application Grade 2: These gauge blocks are intended for shop floor use to set and calibrate fixtures as well as precision instruments. Grade : This grade is used within an inspection area to verify the accuracy of plug and snap gages as well as for setting electronic measuring devices. Grade 0: These higher accuracy gauges are intended for use within a controlled environment by skilled inspection staff. Mainly used as reference standards for setting high precision measuring equipment and for the calibration of lower grade gauge blocks. Grade K: Gauge blocks of this accuracy are intended for use within a temperature controlled inspection room or calibration laboratory. They should be used as masters with certificates against other gauge blocks which are calibrated by comparison. Constructing a Gauge Block Stack The following points should be noted when constructing a gauge block stack:. Use as few gauge blocks as possible to obtain the required length by selecting thick blocks wherever possible. 2. Select the block for the least significant digit first, then work back through the more significant digits until the required length is attained. 3. There are multiple combinations for the integer part of a length. To prevent wear as much as possible, do not always use the same gauge blocks. Mitutoyo Gauge Blocks and Inspection Certificates A Certificate of Inspection is furnished with all Mitutoyo gauge blocks with a serial number on the box (in the case of sets) and an identification number on each block. The deviation of each block from nominal length, at the time of inspection, is stated. For this inspection, each gauge block is measured relative to the upper level master using a gauge block comparator. Grade K gauge blocks are measured by a primary measurement method using an interferometer. Selecting Gauge Blocks Select gauge blocks in accordance with the combination range required. If a large length is required, add a long block set. Select gauge blocks in accordance with the minimum length step required. Add wear block sets if necessary. If a set containing a large number of gauge blocks is selected, the number of combination gauge blocks required for a length is reduced and the number of combinations is increased. The accuracy will be retained and damage will be reduced. The specific gauge block set for micrometer inspection and caliper inspection is available. If using only one length repeatedly, it is a good idea to purchase discrete gauge blocks. The 2mm-based gauge blocks, which take the base of the minimum length step as 2mm, are easy to handle and will not warp, as compared to the mm-based gauge blocks. Example: Required length = 45.6785mm For a mm-based gauge block set (2 pcs.).0005.008.7 7.5 + ) 25 45.6785mm For a 2mm-based gauge block set (2 pcs.) 2.0005 2.008 2.7 4.5 + ) 25 45.6785mm * Regarding the method for wringing, refer to Quick Guide to Precision Measuring Instruments on page E-33.

Features of Gauge Blocks Mitutoyo offers 3 types of gauge block for use as length standards: rectangular steel, rectangular ceramic (CERA Blocks) and square steel gauge blocks. In addition, rectangular and square protection blocks (mm and 2mm for each) are available in tungsten carbide. Mitutoyo gauge blocks are recognized to be of the highest quality both here in Japan and abroad, and are available in various grades to meet every need in respect of working conditions, environment and application. Wringing Lapping measuring surfaces is one of Mitutoyo s specialties. Our advanced technique, developed over more than half a century, enables us to achieve the optimum flatness and surface finish needed for gauge blocks and thus maximize the wringing force. Abrasion Resistance and Dimensional Stability of Steel Blocks High-carbon high-chrome steel is employed to satisfy a variety of the material characteristics required for gauge blocks. Our advanced heat treatment technology for steel blocks, which involves repeated temperature cycling, simultaneously achieves excellent abrasion resistance and minimizes any change in length over time. Features of Mitutoyo CERA Blocks CERA blocks are made of a ceramic material with a superior surface finish, created by Mitutoyo s ultra-precision machining techniques, that provides a premium quality block with significant advantages:. Corrosion Resistant Anti-corrosion treatment is not required when handled normally (i.e. with fingers), resulting in simple maintenance and storage. 2. No Burrs Caused by Accidental Mishandling Since the CERA Block is very hard, it will not scratch easily and is highly resistant to burrs. If a burr is formed, it can easily be removed with a ceramic deburring stone (Ceraston). 3. Abrasion Resistant CERA Blocks have 0 times the abrasion resistance of steel gauge blocks. Abrasion loss (µm) 0.4 0.2 0 Abrasion loss data 2000 CERA Block Steel Tungsten carbide 4000 6000 8000 Sliding distance (m) 4. Dimensionally Stable CERA Blocks are free from dimensional change over time. 5. Clearly Marked Sizes Black characters, indicating the nominal length, are inscribed by laser and are clearly visible against the white surface of the block. 6. Non-magnetic Nature Prevents Steel Swarf Contamination 7. High Wringing Force Superior flatness and surface finish provides maximum wringing force. 8. Superior Material Characteristics of CERA Block Property Material CERA Block (ZrO 2 ) Steel (Fe) Tungsten Carbide (WC-Co) Hardness (HV) 350 800 650 Coefficient of thermal expansion (0-6 /K).3±0.5 0.8±0.5 5.5±.0 Flexural strength by 3-point bending (MPa) 270 60 60 Fracture toughness Kc (MPa m /2 ) 7 20 2 Young s modulus x0-4 (MPa) 20.6 20.6 6.8 Poisson s ratio 0.3 0.3 0.2 Specific gravity 6.0 7.8 4.8 Thermal conductivity (W/m k) 2. 54.4 7.5 * Ceramics have the advantage of a slow response to temperature changes due to the low thermal conductivity. However, caution is required when using CERA blocks in the environment of severe temperature change.. Closest Expansion Coefficient to Steel The thermal expansion coefficient of a CERA Block is quite similar to that of a steel gauge block. 7 Difference in dimension (µm) 3 8 2 2 3 20 2 22 23 Tungsten carbide CERA Block Temperature (C) Differences in size between alternative gauge block materials and steel that are obtained when measuring over a length of 00mm at each temperature. 0. Highly Resistant to Dropping and Impact Damage The CERA Block material is one of the toughest ceramics. It is extremely difficult to crack a CERA block in normal use. 0

Gauge Blocks with a Calibrated Coefficient of Thermal Expansion Mitutoyo offers top-level gauge blocks (steel and ceramic) which are superior to K class blocks, with their quality supported by Mitutoyo s best technologies. Features an accurately calibrated thermal expansion coefficient measured with a proprietary double-faced interferometer (DFI). Each gauge block is calibrated for length on a highly accurate gauge block interferometer (GBI) system. Available as rectangular gauge blocks in the range 00 to 500mm. SPECIFICATIONS Metric Blocks with CTE Order No. (steel)* Order No. (CERA)* Length (mm) 668 6368 00 6802 63802 25 6803 63803 50 6804 63804 75 6682 63682 200 6805 63805 250 6683 63683 300 6684 63684 400 6685 63685 500 Grade K class in JIS/ASME/ISO Uncertainty of thermal expansion coefficient 0.035 0-6 /K (k = 2) Uncertainty of length measurement 30nm (k = 2), for 00mm block * An inspection certificate and a JCSS calibration certificate are supplied as standard. A calibration report and a calibration certificate for the thermal expansion coefficient are also supplied as standard. * Suffix Number ( - n n n ) for Selecting Standard Required ISO/DIN/JIS Suffix No. Grade Inspection Calibration Certificate Certificate JCSS -0B K O O ASME Suffix No. Grade Inspection Calibration Certificate Certificate JCSS -5B K O O Inch Blocks with CTE Order No. (steel)* Order No. (CERA)* Length (inch) 6204 63204 4 6205 63205 5 6206 63206 6 6207 63207 7 6208 63208 8 6222 63222 0 6223 63223 2 6224 63224 6 6225 63225 20 BS Suffix No. Grade Inspection Calibration Certificate Certificate JCSS -B K O O * Only for 00mm type ZERO CERA Blocks Thermal expansion in the temperature range 20±ºC less than /500 that of steel (0±0.02 0-6 /K(20ºC)) Almost no secular change both in dimension and coefficient of thermal expansion Complementary ultra-low thermal expansion and high specific rigidity (Young's modulus/specific gravity) SPECIFICATIONS Metric Blocks Inspection Certificate JIS/ISO/DIN Order No. BS ASME Length (mm) 67673-06 67673-6 67673-56 30 67675-06 67675-6 67675-56 50 6768-06 6768-6 6768-56 00 67682-06 67682-6 67682-56 200 67683-06 67683-6 67683-56 300 67684-06 67684-6 67684-56 400 67685-06 67685-6 67685-56 500 67840-06 67840-6 67840-56 600 6784-06 6784-6 6784-56 700 67843-06 67843-6 67843-56 800 67844-06 67844-6 67844-56 00 67845-06 67845-6 67845-56 000 56-77-60 56-77-6 56-77-66 Above set

Metric/Inch Rectangular Gauge Block Sets Mitutoyo provides a wide selection of boxed sets of gauge blocks to meet the various needs of industry. Selecting the best set, or sets, to acquire usually depends on the accuracy required by the target applications, the level of convenience desired (larger sets offer more combination possibilities) and the environmental conditions in which they will be used. Steel mm Base Block Sets Steel 2-block set Steel 03-block set Steel 76-block set Steel 56-block set Steel 47-block set Steel 46-block set Steel 34-block set Steel 32-block set Steel 0.00mm Step Block Sets Steel -block set Steel Long Block Sets Steel -block set Steel Wear Block Sets Steel 8-block set Steel 8-block set Steel 2-block set Steel Thin Block Sets Steel -block set Note: Details of the contents of any particular set are given on page E-4. 2

CERA mm Base Block Sets CERA 2-block set CERA 03-block set CERA 76-block set CERA 56-block set CERA 47-block set CERA 46-block set CERA 34-block set CERA 32-block set CERA 0.00mm Step Block Sets CERA -block set CERA -block set CERA 8-block set CERA Long Block Sets 0.05 0.2 Length 2-ø0 L 0.2 Unit:mm 0 35 0.3 CERA 8-block set 25±0.5 Airy line 25±0.5 CERA Wear Block Sets Wear block Wear block CERA 2-block set 3 Note: Details of the contents of any particular set are given on page E-5.

* Suffix Number ( n ) for Selecting Standard and Certificate Provided ISO/DIN/JIS Suffix No. Inspection Certificate Calibration Certificate JCSS O 6 O O Suffix No. : Not available for Grade K sets. ASME BS Suffix No. Suffix No. Inspection Certificate Inspection Certificate Calibration Certificate JCSS O 6 O O Suffix No. : Not available for Grade K sets. Suffix No. 6: Only for Grade K sets. Inspection Certificate Calibration Certificate JCSS O 6 O O Suffix No. : Not available for Grade K sets. Suffix No. 6: Only for Grade K sets. SPECIFICATIONS * Refer to "Classification of Gauge Blocks by Shape" on page 37 for sizes and forms, and "Accuracies of Mitutoyo Gauge Blocks" on page 8 and for accuracy. mm Base Block Sets Standard / grade available and Blocks Order No. Blocks included in set Suffix No.* per set Steel CERA ISO/DIN/JIS ASME BS Size Step Qty. 22.0005 56-56 K: -n0.00 -.00 0.00 56-57.0 -.4 0.0 4 56-58 : -n0.6 -. 0. 4 0.5-2 4.5 0.5 4 56-5 30-00 0 8 2 56-53 56-37 56-38 56-3 56-40 03 56-533 56-4 56-42 56-43 56-44 88 56-6 56-70 56-7 56-72 87 56-535 56-45 56-46 56-47 56-48 76 56-4 56-50 56-5 56-52 56 56-536 56-53 56-54 56-55 56-56 47 56-537 56-57 56-58 56-5 56-60 47 56-6 56-62 56-63 56-64 46 56-4 56-5 56-6 56-7 34 56-28 56-2 56-30 56-3 32 56-65 56-66 56-67 56-68 56-54 56-337 56-338 56-33 56-340 56-542 56-34 56-342 56-343 56-344 56-36 56-370 56-37 56-372 55-543 56-345 56-346 56-347 56-348 56-34 56-350 56-35 56-352 56-544 56-353 56-354 56-355 56-356 56-545 56-357 56-358 56-35 56-360 56-36 56-362 56-363 56-364 56-34 56-35 56-36 56-37 56-78 56-7 56-80 56-8 56-365 56-366 56-367 56-368 K: -n0 : -n0 K: -n0 : -n0 : -n0 K: -n0 : -n0 K: -n0 : -n0 K: -n0 : -n0 K: -n0 : -n0 K: -n0 : -n0 K: -n0 : -n0 K: -n0 : -n0 K: -n0 : -n0 K: -n6 0 : -n6 K: -n6 0 : -n6 K: -n6 0 : -n6 K: -n6 0 : -n6 K: -n6 0 : -n6 K: -n 0: -n : -n 2: -n K: -n 0: -n : -n 2: -n K: -n 0: -n : -n 2: -n K: -n 0: -n : -n 2: -n K: -n 0: -n : -n 2: -n K: -n 0: -n : -n 2: -n K: -n 0: -n : -n 2: -n 25, 75.0005.00 -.00.0 -.4 0.5-24.5 25-00.005.0 -.4 0.5-24.5 25-00.0005.00 -.00.0 -.4 0.5 -.5 0-00.00 -.00.0 -.4 0.5 -.5 0-00.005.0 -.4 0.5 -.5 0-40 50-00 0.5.00 -.00.0 -.0. -. - 24 25-00.005.0 -.0. -. - 24 25-00.005.0 -..2 -. - 0-00.00 -.00.0 -.0. -. - 0-00.0005.00 -.00.0 -.0. -. - 5 0.005.0 -.0. -. - 0-30 60 0.00 0.0 0.5 25 0.0 0.5 25 0.00 0.0 0.5 0 0.00 0.0 0.5 0 0.0 0.5 0 25 0.00 0.0 0. 25 0.0 0. 25 0.0 0. 0 0.00 0.0 0. 0 0.00 0.0 0. 0.0 0. 0 2 4 4 4 4 4 4 4 0 4 0 4 4 3 24 4 24 4 8 0 0 5 3 Thin Block Sets Standard / grade available and Blocks Order No. Blocks included in set Suffix No.* per set Steel CERA ISO/DIN/JIS ASME BS Size Step Qty. 56-0 0.0-0.50 0.05 56- : -n0 56-2 4

SPECIFICATIONS * Refer to "Classification of Gauge Blocks by Shape" on page 37 for sizes and forms, and "Accuracies of Mitutoyo Gauge Blocks" on page 8 and for accuracy. 0.00mm Step Block Set Blocks per set 8 56-73 56-74 56-75 56-76 56-8 56-82 56-83 56-84 56-85 56-86 56-87 56-88 Order No. Standard / grade available and Suffix No.* Blocks included in set Steel CERA ISO/DIN/JIS ASME BS Size Step Qty. 56-373 K: -n0 0. - 0. 0.00 56-374.00 -.00 0.00 56-375 : -n0 56-376 56-38 56-382 56-383 56-384 56-385 56-386 56-387 56-388 K: -n0 : -n0 K: -n0 : -n0 K: -n 0: -n : -n 2: -n.00 -.00 0.00 0. - 0. 0.00 Long Block Sets Blocks Order No. Standard / grade available and Suffix No.* Blocks included in set per set Steel CERA ISO/DIN/JIS ASME BS Size Step Qty. 8 56-540 56-546 K: -n6 25-75 25 3 56-70 56-73 K: -n0 0 200-250 50 2 56-702 56-732 300-500 00 3 56-703 56-733 : -n0 : -n6 56-704 56-734 Wear Block Sets Blocks per set 2 56-807 56-806 2 56-803 56-802 Inch Block Sets Blocks per set 82 56-548 56-05 56-06 56-07 56-08 8 56-54 56-0 56-02 56-03 56-04 4 56-0 56-56-2 35 56-550 56-3 56-4 56-5 56-6 Thin Block Sets Blocks per set 28 56-55 56-7 56-8 56-56-20 0 56-26 56-27 56-28 Order No. Standard / grade available and Suffix No.* Blocks included in set Carbide CERA ISO/DIN/JIS ASME BS Size Step Qty. 56-832 0:-n6 2 56-833 : -n0 :-n6 56-830 0:-n6 2 2 56-83 : -n0 :-n6 Order No. Standard / grade available and Suffix No.* Blocks included in set Steel CERA ISO/DIN/JIS ASME BS Size Step Qty. 56-556 K: -n6.0005 56-305 0.00.00.000 56-306 0: -n.0.4.00 4 56-307 : -n6 : -n.05.5.05 56-308 2: -n - 4 4 56-557 56-30 56-302 56-303 56-304 56-558 56-33 56-34 56-35 56-36 K: -n6 0 : -n6 K: -n6 0 : -n6 0: -n : -n 2: -n 0: -n : -n 2: -n 0: -n : -n 2: -n.00.00.0.4.05.5-4.00.00.0.0.0..2 -. - 4.0005.00.00.0.0... -.3.5,, 2, 4 Order No. Standard / grade available and Suffix No.* Blocks included in set Steel CERA ISO/DIN/JIS ASME BS Size Step Qty. K: -n6.02005 0.020.020.000.02.02.00 : -n6.0.0.0 : -n6 0: -n : -n 2: -n.000.00.05.000.00.0..000.00.0. 4 4 8 4 3 4.005 -.050.005 0 Long Block Sets Blocks Order No. Standard / grade available and Suffix No.* Blocks included in set per set Steel CERA ISO/DIN/JIS ASME BS Size Step Qty. 8 56-564 K: -n6 5-7 3 56-74 0 8, 0, 2 2 3 56-72 56-742 6, 20 4 2 56-73 56-743 : -n6 Wear Block Sets Blocks per set 2 56-80 56-808 2 56-805 56-804 Order No. Standard / grade available and Suffix No.* Blocks included in set Carbide CERA ISO/DIN/JIS ASME BS Size Step Qty. 56-836 56-837 : -n6.05 2 56-834 56-835 : -n6. 2 5

Micrometer Inspection Gauge Block Sets Dedicated gauge block sets for micrometer inspection. Sets 56-06/7/8 and 56-322/3 are recommended for checking instrumental errors in micrometers due to the choice of block sizes ensuring that the instrument is checked through a full rotation of the spindle over the range 0-25mm (or 0- ). Sets 56-5/6/7, 56-65/6 and 56-77 contain blocks in 25mm (or ) steps for aiding inspection of large micrometers in conjunction with one of the abovementioned sets. Sets 56-580//2, 56-30//2 are dedicated to the QuantuMike with its 2mm/rev spindle feed. Steel CERA Steel 0-block set Steel 0-block set CERA 0-block set CERA 0-block set Steel 8-block set Steel 0-block set CERA 8-block set CERA 0-block set Micro Checker Can clamp a stack of gauge blocks to be used for micrometer inspection. SPECIFICATIONS Metric Micro Checker (holder only) Order No. 56-607 Applicable gauge block set 56-06, 56-07, 56-08, 56-56, 56-57, 56-58 Applicable gauge block size (mm) 2.5, 5., 7.7, 0.3, 2., 5, 7.6, 20.2, 22.8, 25 Inch Micro Checker (holder only) Order No. 56-608 Applicable gauge block set 56-2, 56-22, 56-23, 56-32, 56-322, 56-323 Applicable gauge block size (inch).05,.20,.35,.420,.5,.605,.70,.85,.20, Gauge Block Sets for Micrometer Inspection A set consisting of a Micro Checker and gauge blocks for micrometer inspection. (56-32/3/4/5/6/7) 56-607 (The gauge blocks are optional.) 6

SPECIFICATIONS Metric Block Sets Blocks per set Order No. Standard / grade available and Suffix No.* Steel CERA ISO/DIN/JIS ASME BS 56-6 56-62 : -n0 56-63 6 56-56-2 56-3 0 56-77 56-78 56-7 56-80 0 56-03 56-0 0 56-580 56-58 56-582 0 56-06 56-07 56-08 0 56-32 56-33 56-34 0 56-35 56-36 56-37 8 56-5 56-6 56-7 56-378 56-37 56-380 56-52 56-53 56-54 56-30 56-3 56-32 56-56 56-57 56-58 56-82 56-83 56-84 56-85 56-86 56-87 56-547 56-64 56-65 56-66 56-67 K: -n0 : -n0 : -n0 : -n0 : -n0 : -n0 : -n0 K: -n0 : -n0 : -n6 K: -n6 0 : -n6 Blocks included in set.00,.25,.5, 2, 3, 5, 0, 5, 20, 25, 25.25, 30, 35, 40, 45, 50mm, Cerastone, Optical parallels (t = 2mm, 25mm).00,.25,.50, 2, 3, 5, 0, 5, 20, 25mm, Optical parallel (t = 2mm).00,.25,.50, 2, 3, 5, 0, 5, 20, 25mm 2.2, 4.8, 7.8, 0.4, 2, 5.2, 7.4,.6, 22.6, 25mm 2.5, 5., 7.7, 0.3, 2., 5, 7.6, 20.2, 22.8, 25mm, Optical parallel (t = 2mm).25,.50,, 2, 3, 5, 0, 5, 20, 25mm, Micro Checker, Optical parallel (t = 2mm) 2.5, 5., 7.7, 0.3, 2., 5, 7.6, 20.2, 22.8, 25mm, Micro Checker, Optical parallel (t = 2mm) 25, 50, 75, 00, 25, 50, 75, 200mm * Suffix Number ( n ) for Selecting Standard and Certificate Provided ISO/DIN/JIS BS Suffix No. Suffix No. Inspection Certificate Inspection Certificate Calibration Certificate JCSS O Inspection Certificate Calibration Certificate JCSS O 6 O O Suffix No. : Not available for Grade K sets. ASME Suffix No. Inspection Certificate Calibration Certificate JCSS O 6 O O Suffix No. : Not available for Grade K sets. Suffix No. 6: Only for Grade K sets. Inch Block Sets Standard / grade available and Blocks Order No. Suffix No.* per set Steel CERA ISO/DIN/JIS ASME BS 0 56-528 56-38 0 0: -n 56-52 56-3 : -n 56-530 56-320 : -n6 2: -n 0 56-552 56-2 56-22 56-23 0 56-553 56-38 56-3 56-40 56-554 56-2 56-30 56-3 56-32 56-555 56-4 56-42 56-43 56-44 56-34 56-35 56-36 8 56-26 56-27 56-55 56-32 56-322 56-323 56-560 56-88 56-8 56-0 56-56 56-333 56-334 56-335 56-336 56-562 56-56-2 56-3 56-4 56-563 56-32 56-330 56-33 56-332 56-76 56-77 K: -n6 0 : -n6 K: -n6 0 : -n6 K: -n6 0 : -n6 K: -n6 0 : -n6 K: -n6 0 : -n6 : -n6 0: -n : -n 2: -n 0: -n : -n 2: -n Caliper Inspection Gauge Block Sets SPECIFICATIONS Metric Block Sets Standard / grade available and Blocks Order No. Suffix No. per set Steel CERA ISO/DIN/JIS ASME BS 5 56-74 2: -0 4 56-526 56-527 3 56-24 56-25 2 56-22 56-23 56-566 56-567 56-50 56-5 56-72 56-73 : -0 2: -0 : -0 2: -0 : -0 2: -0 Blocks included in set.087,.8,.307,.40,.472,.58,.66,.772,.80,.05,.20,.35,.420,.500,.605,.70,.85,.20,, Optical parallel (t =.5").05,.20,.35,.420,.500,.605,.70,.85,.20,, Micro checker, Optical parallel (t =.5").0625,.00,.25,.200,.250,.300,.500,, 2, Optical parallel (t =.5").0625,.00,.25,.200,.250,.300,.500,, 2, Micro Checker, Optical parallel (t =.5").0625,.00,.25,.200,.250,.300,.500,, 2, 2, 3, 4, 5, 6, 7, 8 Blocks included in set 5 pcs.: 0.3, 24.5, 50, 75, 00mm, Ceramic plain jaws, Holder (250mm), Glove 4 pcs.: 0, 30, 50, 25mm, Setting ring (ø4mm, ø0mm), Pin gage (ø0mm), Glove 3 pcs.: 30, 4.3, 3.4mm, Setting ring (ø4mm, ø25mm), Glove 2 pcs.: 4.3, 3.4mm, Setting ring (ø20mm), Glove 7

Individual Metric Rectangular Gauge Blocks * Suffix Number ( - n n n ) for Selecting Standard and Certificate Provided ISO/DIN/JIS Suffix No. Grade Inspection Calibration Certificate Certificate JCSS RvA -06 K O O -02 0 O -026 0 O O -03 O -036 O O -04 2 O -046 2 O O ASME Suffix No. Grade Inspection Certificate BS Inspection Certificate Calibration Certificate JCSS -56 K O O -52 00 O -53 0 O -54 O -55 2 O Suffix No. Grade Inspection Certificate Calibration Certificate JCSS -6 K O O -2 0 O -26 0 O O -3 O -36 O O -4 2 O -46 2 O O If using only one length repeatedly, it is a good idea to purchase individual gauge blocks. Nominal sizes which are not included in the chart below can be supplied custom-made on request. Each Grade K gauge block to ISO/DIN/JIS, BS or ASME standard is supplied with a Certificate of Calibration which certifies that the gauge block was calibrated by interferometry. SPECIFICATIONS * Refer to "Classification of Gauge Blocks by Shape" on page 37 for sizes and forms, and "Accuracies of Mitutoyo Gauge Blocks" on page 8 and for accuracy. Metric Blocks Length (mm) Order No.* Order No.* Order No.* Length (mm) Length (mm) Steel CERA Steel CERA Steel CERA 0. 682 0.53 684 0.6 637 0. 6860 0.54 685 0.7 638 0.2 686 0.55 686 0.8 63 0.3 6862 0.56 687 0. 640 0.4 6863 0.57 688 0. 655 6355 0.5 6822 0.58 68 0.2 6552 63552 0.6 6864 0.5 600 0.3 6553 63553 0.7 6865 0.6 60 0.4 6554 63554 0.8 6866 0.6 602 0.5 6555 63555 0. 6867 0.62 603 0.6 6556 63556 0.2 6823 0.63 604 0.7 6557 63557 0.2 6868 0.64 605 0.8 6558 63558 0.22 686 0.65 606 0. 655 6355 0.23 6870 0.66 607 66 636 0.24 687 0.67 608.0005 6520 63520 0.25 6824 0.68 60.00 652 6352 0.26 6872 0.6 60.002 6522 63522 0.27 6873 0.7 6.003 6523 63523 0.28 6874 0.7 62.004 6524 63524 0.2 6875 0.72 63.005 6525 63525 0.3 6825 0.73 64.006 6526 63526 0.3 6876 0.74 65.007 6527 63527 0.32 6877 0.75 66.008 6528 63528 0.33 6878 0.76 67.00 652 6352 0.34 687 0.77 68.0 656 6356 0.35 6826 0.78 6.02 6562 63562 0.36 6880 0.7 620.03 6563 63563 0.37 688 0.8 62.04 6564 63564 0.38 6882 0.8 622.05 6565 63565 0.3 6883 0.82 623.06 6566 63566 0.4 6827 0.83 624.07 6567 63567 0.4 6884 0.84 625.08 6568 63568 0.42 6885 0.85 626.0 656 6356 0.43 6886 0.86 627. 6570 63570 0.44 6887 0.87 628. 657 6357 0.45 6828 0.88 62.2 6572 63572 0.46 6888 0.8 630.3 6573 63573 0.47 688 0. 63.4 6574 63574 0.48 680 0. 632.5 6575 63575 0.4 68 0.2 633.6 6576 63576 0.5 6506 63506 0.3 634.7 6577 63577 0.5 682 0.4 635.8 6578 63578 0.52 683 0.5 636. 657 6357 8

* Refer to "Classification of Gauge Blocks by Shape" on page 37 for sizes and forms, and "Accuracies of Mitutoyo Gauge Blocks" on page 8 and for accuracy. Length (mm) Order No.* Steel CERA.2 6580 63580.2 658 6358.22 6582 63582.23 6583 63583.24 6584 63584.25 6585 63585.26 6586 63586.27 6587 63587.28 6588 63588.2 658 6358.3 650 6350.3 65 635.32 652 6352.33 653 6353.34 654 6354.35 655 6355.36 656 6356.37 657 6357.38 658 6358.3 65 635.4 6600 63600.4 660 6360.42 6602 63602.43 6603 63603.44 6604 63604.45 6605 63605.46 6606 63606.47 6607 63607.48 6608 63608.4 660 6360.5 664 6364.6 656 6356.7 657 6357.8 658 6358. 65 635 2 662 6362 2.0005 660 2.00 66 2.002 662 2.003 663 2.004 664 2.005 665 2.006 666 2.007 667 2.008 668 2.00 66 2.0 670 2.02 6702 2.03 6703 2.04 6704 2.05 6705 2.06 6706 2.07 6707 2.08 6708 2.0 670 2. 670 2. 67 2.2 672 2.3 673 2.4 674 2.5 675 2.6 676 Length (mm) Order No.* Steel CERA 2.7 677 2.8 678 2. 67 2.2 6720 2.2 672 2.22 6722 2.23 6723 2.24 6724 2.25 6725 2.26 6726 2.27 6727 2.28 6728 2.2 672 2.3 6730 2.3 673 2.32 6732 2.33 6733 2.34 6734 2.35 6735 2.36 6736 2.37 6737 2.38 6738 2.3 673 2.4 6740 2.4 674 2.42 6742 2.43 6743 2.44 6744 2.45 6745 2.46 6746 2.47 6747 2.48 6748 2.4 674 2.5 6642 63642 2.6 6750 2.7 675 2.8 6752 2. 6753 3 663 6363 3.5 6643 63643 4 664 6364 4.5 6644 63644 5 665 6365 5. 6850 63850 5.5 6645 63645 6 666 6366 6.5 6646 63646 7 667 6367 7.5 6647 63647 7.7 685 6385 8 668 6368 8.5 6648 63648 66 636.5 664 6364 0 667 6367 0.3 6852 63852 0.5 6650 63650 662 6362.5 665 6365 2 6622 63622 2.5 6652 63652 2. 6853 63853 Length (mm) Order No.* Steel CERA 3 6623 63623 3.5 6653 63653 4 6624 63624 4.5 6654 63654 5 6625 63625 5.5 6655 63655 6 6626 63626 6.5 6656 63656 7 6627 63627 7.5 6657 63657 7.6 6854 63854 8 6628 63628 8.5 6658 63658 662 6362.5 665 6365 20 6672 63672 20.2 6855 63855 20.5 6660 63660 2 663 6363 2.5 666 6366 22 6632 63632 22.5 6662 63662 22.8 6856 63856 23 6633 63633 23.5 6663 63663 24 6634 63634 24.5 6664 63664 25 6635 63635 25.25 6754 63754 30 6673 63673 35 6755 63755 40 6674 63674 4.3 6857 63857 45 6756 63756 50 6675 63675 60 6676 63676 70 6677 63677 75 680 6380 80 6678 63678 0 667 6367 00 668 6368 25 6802 63802 3.4 6858 63858 50 6803 63803 75 6804 63804 200 6682 63682 250 6805 63805 300 6683 63683 400 6684 63684 500 6685 63685 600 6840 700 684 750 6842 800 6843 00 6844 000 6845 Metric Wear Blocks Length (mm) Order No.* Tungsten carbide 626 2 6262 Dimensions Nominal length: 0.mm - 5.5mm (.004" -.25") Nominal length: 6mm - 0mm (.3" -.4") Nominal length: 0.3mm - 00mm (.45" - 4") -0.05-0.2 0 35-0.3 Measuring face Nominal Value Measuring face Serial number -0.05-0.2 Measuring face -0.05-0.2 Measuring face 0 30-0.3 0 35-0.3 Nominal Value -0.05-0.2 223 0 30-0.3 Nominal length 25mm - 000mm (5" - 20") x0.2 25±0.5 Airy line Length mm 223 mm 223 Length Nominal Value Serial number Length Nominal Value Serial number 2-Ø0 Serial number Length Unit: mm x0.2 25±0.5

Individual Inch Rectangular Gauge Blocks * Suffix Number ( - n n n ) for Selecting Standard and Certificate Provided ASME Suffix No. Grade Inspection Certificate BS Calibration Certificate JCSS -56 K O O -52 00 O -53 0 O -54 O -55 2 O Suffix No. Grade Inspection Certificate Calibration Certificate JCSS -2 0 O -3 O -4 2 O Inspection Certificate SPECIFICATIONS * Refer to "Classification of Gauge Blocks by Shape" on page 37 for sizes and forms, and "Accuracies of Mitutoyo Gauge Blocks" on page 8 and for accuracy. Inch Blocks Length (inch) Order No.* Order No.* Length (inch) Steel CERA Steel CERA.004 6304.038 6338.005 6305.03 633.006 6306.04 6340.007 6307.04 634.008 6308.042 6342.00 630.043 6343.0 630.044 6344.0 63.045 6345.02 632.046 6346.03 633.046875 (3/64) 602 6304.04 634.047 6347.05 635.048 6348.06 636.04 634.07 637.05 605 6305.08 638.06 606.0 63.0625 6303 63303.02 6320.07 607.02005 6240.07825 (5/64) 603 6300.020 623.08 608.0202 6232.0 60.0203 6233.0375 (3/32) 604 630.0204 6234. 6 63.0205 6235.00025 6 630.0206 6236.0005 635 6335.0207 6237.00075 62 63.0208 6238.00 62 632.020 623.002 622 6322.02 632.003 623 6323.022 6322.004 624 6324.023 6323.005 625 6325.024 6324.006 626 6326.025 6325.007 627 6327.026 6326.008 628 6328.027 6327.00 62 632.028 6328.0 64 634.02 632.02 642 6342.03 6330.03 643 6343.03 633.04 644 6344.0325 (/32) 60 6303.05 645 6345.032 6332.06 646 6346.033 6333.07 647 6347.034 6334.08 648 6348.035 6335.0 64 634.036 6336.0375 (7/64) 60 6302.037 6337 20

SPECIFICATIONS * Refer to "Classification of Gauge Blocks by Shape" on page 37 for sizes and forms, and "Accuracies of Mitutoyo Gauge Blocks" on page 8 and for accuracy. Inch Blocks Length (inch) Order No.* Order No.* Length (inch) Steel CERA Steel CERA. 650 6350. 6 63. 65 635.2 62 632.2 652 6352.2 622 6322.3 653 6353.25 622 6322.4 654 6354.3 63 633.5 655 6355.35 620 6320.6 656 6356.35 623 6323.7 657 6357.375 (3/8) 63 632.8 658 6358.4 64 634. 65 635.420 620 6320.2 660 6360.45 624 6324.2 66 636.5 65 635.22 662 6362.55 625 6325.23 663 6363.6 66 636.24 664 6364.605 62 632.25 665 6365.65 626 6326.26 666 6366.7 67 637.27 667 6367.70 6220 63220.28 668 6368.75 627 6327.2 66 636.8 68 638.3 670 6370.85 6226 63226.3 67 637.85 628 6328.32 672 6372. 6 63.33 673 6373.20 6227 63227.34 674 6374.5 62 632.35 675 6375 620 6320.36 676 6376 2 6202 63202.37 677 6377 3 6203 63203.38 678 6378 4 6204 63204.3 67 637 5 6205 63205.4 680 6380 6 6206 63206.4 68 638 7 6207 63207.42 682 6382 8 6208 63208.43 683 6383 0 6222 63222.44 684 6384 2 6223 63223.45 685 6385 6 6224 63224.46 686 6386 20 6225 63225.47 687 6387.48 688 6388.4 68 638.5 65 635.6 66 636.7 67 637.8 68 638 Inch Wear Blocks Length (inch) Order No.* Tungsten carbide.05 6205. 62 Dimensions Nominal length: 0.mm - 5.5mm (.004" -.25") Nominal length: 6mm - 0mm (.3" -.4") Nominal length: 0.3mm - 00mm (.45" - 4") -0.05-0.2 0 35-0.3 Measuring face Nominal Value Measuring face Serial number -0.05-0.2 Measuring face -0.05-0.2 Measuring face 0 30-0.3 0 35-0.3 Nominal Value -0.05-0.2 223 0 30-0.3 Nominal length 25mm - 000mm (5" - 20") x0.2 25±0.5 Airy line Length mm 223 mm 223 Length Nominal Value Serial number Length Nominal Value Serial number 2-Ø0 Serial number Length Unit: mm x0.2 25±0.5 2

Rectangular Gauge Blocks Accessories To expand the range of rectangular gauge block (steel and CERA) applications, Mitutoyo offers the gauge block accessories set. By assembling the items in the set, together with gauge blocks, you can easily and quickly build up a precision gage. 56-60 (22 pcs) 56-602 (4 pcs) SPECIFICATIONS Item Description Item Order No. 22 pcs 56-60 Set 4 pcs 56-602 6002 Holder 6003 6004 pc. 6005 Base 600 600 60 Half round jaw 602 603 One pair (2pcs) 604 Plain jaw 608 Scriber point 60 Center point 6020 pc. Tram point 602 One pair (2pcs) Triangular straight edge 6022 6023 pc. * Only pc is supplied for each Order No. However, half round jaw, plain jaw, and tram point are supplied in a pair. (2 pcs). 22 Qty

6.5 Holder Thickness = 5mm Width = 2.5mm 6002 = 5-60mm 6003 = 5-00mm Finished surfaces Clamp 6004 =5-60mm 6005 =20-250mm The length ( ) can be adjusted by attaching/removing the adapter. Gaging a bore using a pair of half round jaws and a holder Finished surfaces Adapter Finished surfaces Base 600 72 Finished surface Holder mount 35±0.0008 Holder mount Finished surface Flatness tolerance of the finished surface 0.5μm Flatness tolerance of the bottom surface μm Marking a workpiece using the base, a holder and the scriber point Half round jaw Type I A B C Measuring face D Finished surface Flatness tolerance of the finished surface 0.5μm Type II B C Measuring face A D Finished surface Unit: mm Order No. Type Size A B C D 600* 2 2±0.0005 5.5 40 7.5 60* I 5 5±0.0005 4 45 7.5 602* 8 8±0.0005 20 50 8.5 603* 2 2±0.0005 25 75 3 II 604* 20 20±0.0005 25 25 20 Setting a bore gage using a holder with the pair of Type I half-round jaws arranged as flat contact surfaces Plain jaw (B type) 608* 25 20 Flatness tolerance of the finished surface µm 60 Measuring and finished surface Scriber point 60 50 Finished surface 8.5 Flatness tolerance of the finished surface 0.5µm Center point 6020 Finished surface 60 8.5 50 Eccentricity tolerance of the point ±0µm Flatness tolerance of the finished surface 0.5µm Tram point 602* Finished surface 30 8.5 50 Eccentricity tolerance of the point ±0µm Flatness tolerance of the finished surface 0.5µm Triangular straight edge 60 6 (6022).5 (6023) L 00mm (6022) 60mm (N6023) Straightness tolerance of the edge.2µm * Qty: One pair (2 pcs) 23

Accessories for Rectangular Gauge Blocks over 00mm Specially designed for long gauge blocks over 25mm which have two coupling holes on the body: coupling of two long gauge blocks and attachment of jaws is possible. These accessories can also be used for CERA blocks. 56-605 (4 pcs) 0.05 0.2 0 35 0.3 25±0.5 Nominal size 2-ø0 L 0.2 Airy point markers 25±0.5 Coupling holes in long gauge blocks SPECIFICATIONS Set Order No. Individual Item Order No. Item Description Quantity Supplied 603 Connector A 6032 Connector B 6033 Connector C pc. 6034 Connector D 56-605 6035 Connector E 6036 Adapter 3 pcs. 600 Base pc. 603 Half round jaw 608 Plain jaw One pair (2pcs) 60 Scriber point pc. * Only pc is supplied for each Order No. However, half round jaw, plain jaw, and tram point are supplied in a pair. (2 pcs). Connector A 603 75 Adjustable pin Fixed pin (26) Used for directly coupling two long gauge blocks. Connectors B and C L Order No. (max.) L Adapter Qty Connector B 6032 0mm 26mm 2 Connector C 6033 200mm 236mm Use of B-type connectors in gage construction Adapter 6036 Used for clamping jaws to the ends of one or more long gauge blocks in conjunction with adapters (6036). The length is highly adjustable to accommodate the variable length of a stack of regular gauge blocks that would be wrung to one of the long gauge blocks to achieve the required gaging size. Long and Ultra-Thin Gauge Blocks Mitutoyo offers extra-thin gauge blocks from 0.0mm to 0.mm (increments of 0.0mm) as well as long gauge blocks up to,000mm as standard products. 24

Connector D 6034 40 65.5 Used for attaching a long gauge block directly to the base. Connector E 6035 20 Adapter 6036 (pc.) = 70-75mm Used for attaching a long gauge block to the base over a stack of regular gauge blocks wrung between the base and long gauge block. The length is highly adjustable to accommodate the variable length of the stack. Setting a dial test indicator to a longgauge-block stack attached to the base with a D-type connector Base 600 72 Finished surface Holder mount 35±0.0008 Holder mount Finished surface Flatness tolerance of the finished surface 0.5μm Flatness tolerance of the bottom surface μm Plain jaw 608* 2 25 20 Flatness tolerance of the finished surface µm 60 Measuring and finished surface Half round jaw 603* 2 2±0.0005mm 25 Measuring face Finished surface 75 3 Flatness tolerance of the finished surface 0.5µm Scriber point 60 50 Finished surface 8.5 Flatness tolerance of the finished surface 0.5µm Assortment of accessories for gauge blocks For inside and outside measurement inspection of 300 to 000mm (every 00mm) gauge blocks, select the appropriate combination of a rectangular gauge block and an accessory. Items 300mm 400mm 500mm 600mm 700mm 800mm 00mm 000mm Order No. Inner Outer Inner Outer Inner Outer Inner Outer Inner Inner Inner Outer Inner Out Inner Outer Rectangular 200mm 6682 gauge block 300mm 6683 (nominal 400mm 6684 dimension) 500mm 6685 2 2 Connector A 603 Connector B* 6032 2 2 2 2 2 2 2 2 Half round jaws* 2 603 Adapter 6036 (2) (2) (2) (2) (2) (2) (2) (2) * Provided with adapters (2 pcs) *2 2 pcs/set 25

Metric/Inch Square Gauge Block Sets Metric Block Sets, Inch Block Sets, Long Block Sets, Wear Block Sets Square gauge block sets have several unique characteristics (refer to page 0 for details.). A wide choice is provided to best match the target applications: sets containing from 2 to 2 blocks are available. Steel 2-block set Steel 03-block set Steel 76-block set Steel 47-block set Steel 32-block set Wear block set Long block set Tungsten Carbide 2-block set Steel 8-block set The wear to a frequently used square gauge block set can be drastically reduced by using tungsten-carbide wear blocks on the ends of a stack. There are two available, of nominal dimension mm and 2mm. These blocks are much more wear-resistant than steel blocks, and they also absorb most of the wear that would otherwise occur to the blocks in the set due to contact, and therefore maximize the set's longevity. Wear blocks are relatively inexpensive so can be readily discarded when no longer serviceable. To achieve maximum protection, the same face of each wear block should always be wrung to a set block, so the opposite, wearing, face never touches a set block. 26

SPECIFICATIONS Metric Block Sets Blocks Order No. Standard / grade available Blocks included in set per set Steel CERA ISO/DIN/JIS ASME Size Step Qty. 2 56-437 0.005 56-438.00 -.00 0.00 56-43 56-440 : -n0 : -n6.0 -.4 0.5-24.5 25-00 0.0 0.5 25 4 4 4 03 56-44 56-442 56-443 56-444 76 56-44 56-450 56-45 56-452 47 56-457 56-458 56-45 56-460 32 56-465 56-466 56-467 56-468 : -n0 : -n0 : -n0 : -n0 0 : -n6 0 : -n6 0 : -n6 0 : -n6.005.0 -.4 0.5-24.5 25-00.005.0 -.4 0.5 -.5 0-40 50-00.005.0 -.0. -. - 24 25-00.005.0 -.0. -. - 0-30 60 Metric Long Block Sets Blocks Order No. Standard / grade available Blocks included in set per set Steel CERA ISO/DIN/JIS ASME Size Step Qty. 8 56-75 0 25, 50, 75 25 3 56-752 200, 250 50 2 56-753 56-754 : -n0 : -n6 300, 400, 500 00 3 0.0 0.5 25 0.0 0.5 0 25 0.0 0. 25 0.0 0. 0 4 4 4 4 4 3 24 4 3 * Suffix Number ( n ) for Selecting Standard and Certificate Provided ISO/DIN/JIS Suffix No. ASME Inspection Certificate Calibration Certificate JCSS O 6 O O Suffix No. Inspection Certificate Calibration Certificate JCSS O Inspection Certificate Metric Wear Block Sets Blocks Order No. Standard / grade available Blocks included in set per set Steel CERA ISO/DIN/JIS ASME Size Step Qty. 2 56-820 2 56-82 : -n0 2 56-822 2 2 56-823 : -n0 Inch Block Sets Blocks Order No. Standard / grade available Blocks included in set per set Steel CERA ISO/DIN/JIS ASME Size Step Qty. 8 56-40 56-20 0.00 -.00.000 56-402 56-202.0 -.4.00 4 56-403 56-404 56-203 56-204 : -n6.05 -.5-4.05 4 36 56-42 56-422 56-423 56-424 28 56-47 56-48 56-4 56-420 56-22 56-222 56-223 56-224 0 : -n6 0 : -n6.05.00 -.00.0 -.0. -.. -.5, 2, 4.02005.020-.020.02-.02.00-.00.000.00.0..000.00.0 Inch Long Block Sets Blocks Order No. Standard / grade available Blocks included in set per set Steel CERA ISO/DIN/JIS ASME Size Step Qty. 8 56-762 5-7 3 56-763 : -n0 8, 0, 2 2 3 6, 20 4 2 Inch Wear Block Sets Blocks Order No. Standard / grade available Blocks included in set per set Carbide CERA ISO/DIN/JIS ASME Size Step Qty. 2 56-824 56-846.05 2 56-825 56-847 : -n0 2 56-826 56-844. 2 56-827 56-845 : -n0 5 3 27

Individual Metric Square Gauge Blocks * Suffix Number ( - n n n ) for Selecting Standard and Certificate Provided ISO/DIN/JIS Suffix No. Grade Inspection Certificate Calibration Certificate JCSS -02 0 O -026 0 O O -03 O -036 O O -04 2 O -046 2 O O ASME Suffix No. Grade Inspection Certificate Calibration Certificate JCSS -52 00 O -53 0 O -54 O -55 2 O Purchase of individual metric square gauge blocks is economic if only specific sizes are heavily used. Please add the suffix number representing the national standard and grade required at the end of the Order No. when ordering these items. Special sizes that are not included in the charts can be supplied custom-made on request. Inspection Certificate SPECIFICATIONS * Refer to "Classification of Gauge Blocks by Shape" on page 37 for sizes and forms, and "Accuracies of Mitutoyo Gauge Blocks" on page 8 and for accuracy. Metric Blocks Length (mm) Order No.* Length (mm) Order No.* Length (mm) Order No.* Length (mm) Order No.* Steel CERA Steel CERA Steel CERA Steel CERA 0.5 64506.23 64583 3 6463 20 64672 646.24 64584 3.5 64643 20.5 64660.0005 64520.25 64585 4 6464 2 6463.00 6452.26 64586 4.5 64644 2.5 6466.002 64522.27 64587 5 6465 22 64632.003 64523.28 64588 5.5 64645 22.5 64662.004 64524.2 6458 6 6466 23 64633.005 64525.3 6450 6.5 64646 23.5 64663.006 64526.3 645 7 6467 24 64634.007 64527.32 6452 7.5 64647 24.5 64664.008 64528.33 6453 8 6468 25 64635.00 6452.34 6454 8.5 64648 30 64673.0 6456.35 6455 646 40 64674.02 64562.36 6456.5 6464 50 64675.03 64563.37 6457 0 6467 60 64676.04 64564.38 6458 0.5 64650 75 6480.05 64565.3 645 6462 00 6468.06 64566.4 64600.5 6465 25 64802.07 64567.4 6460 2 64622 50 64803.08 64568.42 64602 2.5 64652 75 64804.0 6456.43 64603 3 64623 200 64682. 64570.44 64604 3.5 64653 250 64805. 6457.45 64605 4 64624 300 64683.2 64572.46 64606 4.5 64654 400 64684.3 64573.47 64607 5 64625 500 64685.4 64574.48 64608 5.5 64655.5 64575.4 6460 6 64626.6 64576.5 6464 6.5 64656.7 64577.6 6456 7 64627 Metric Wear Blocks.8 64578.7 6457 7.5 64657. 6457.8 6458 8 64628 Length (mm) Order No. Tungsten carbide.2 64580. 645 8.5 64658 656.2 6458 2 6462 6462.22 64582 2.5 64642.5 6465 2 6562 28

Individual Inch Square Gauge Blocks SPECIFICATIONS * Refer to "Classification of Gauge Blocks by Shape" on page 37 for sizes and forms, and "Accuracies of Mitutoyo Gauge Blocks" on page 8 and for accuracy. Inch Blocks Length (inch) Order No.* Order No.* Length (inch) Steel CERA Steel CERA.0 6430.23 6463 6663.02005 64240.24 6464 6664.020 6423.25 6465 6665.0202 64232.26 6466 6666.0203 64233.27 6467 6667.0204 64234.28 6468 6668.0205 64235.2 646 666.0206 64236.3 6470 6670.0207 64237.3 647 667.0208 64238.32 6472 6672.020 6423.33 6473 6673.02 64320.34 6474 6674.02 6432.35 6475 6675.022 64322.36 6476 6676.023 64323.37 6477 6677.024 64324.38 6478 6678.025 64325.3 647 667.026 64326.4 6480 6680.027 64327.4 648 668.028 64328.42 6482 6682.02 6432.43 6483 6683.03 64330.44 6484 6684.0325 (/32) 6430.45 6485 6685.04 64340.46 6486 6686.046875 (3/64) 64302.47 6487 6687.05 6405 6605.48 6488 6688.06 6406.4 648 668.0625 64303 66303.5 645 665.07 6407.6 646 666.07825 (5/64) 64304.7 647 667.08 6408.8 648 668.0 640. 64 66.0375 (3/32) 64305.2 642 662. 64 66.25 6422 6622.00025 64307.3 643 663.0005 6435 6635.35 6423 6623.00075 64308.375 (3/8) 6430.00 642 662.4 644 664.002 6422 6622.45 6424 6624.003 6423 6623.5 645 665.004 6424 6624.55 6425 6625.005 6425 6625.6 646 666.006 6426 6626.65 6426 6626.007 6427 6627.7 647 667.008 6428 6628.75 6427 6627.00 642 662.8 648 668.0 644 664.85 6428 6628.02 6442 6642. 64 66.03 6443 6643.5 642 662.04 6444 6644 6420 6620.05 6445 6645 2 64202 66202.06 6446 6646 3 64203 66203.07 6447 6647 4 64204 66204.08 6448 6648 5 64205.0 644 664 6 64206.0375 (7/64) 64306 7 64207. 6450 6650 8 64208. 645 665 0 64222.2 6452 6652 2 64223.3 6453 6653 6 64224.4 6454 6654 20 64225.5 6455 6655.6 6456 6656 Inch Wear Blocks.7 6457 6657.8 6458 6658. 645 665.2 6460 6660.2 646 666.22 6462 6662 Length (inch) Order No.* Tungsten carbide.05 6505. 65 2 * Suffix Number ( - n n n ) for Selecting Standard and Certificate Provided ASME Suffix No. Dimensions Nominal length: 0.5mm - 4.5mm (.00" -.") Nominal Value Measuring face Serial number Inspection Certificate 24.±0. Nominal length: 5mm - 4.5mm (.02" -.450") 6.7±0. 24.±0. Nominal length: 5mm - 500mm (.500" - 20") Nominal Value Serial number 6.7±0. Grade Nominal Value 24.±0. Inspection Certificate 24.±0. Length 24.±0. Length Measuring face Length 24.±0. Measuring face Calibration Certificate JCSS -52 00 O -53 0 O -54 O -55 2 O Serial number Unit: mm 6.7±0. On both sides 77±2 ø.3 77±2 ø.3

Square Gauge Block Accessories Set To expand the application of square gauge blocks, Mitutoyo offers the Gauge Block Accessories Set. Square gauge blocks have a much broader range of application than rectangular gauge blocks due to the central clamping hole. Also, the accessories included in the set are sold individually depending on the application. Features of Square Gauge Blocks SPECIFICATIONS Metric Order No. 56-6 Included in set 6070 Half round jaw 607 Half round jaw 6072 Plain jaw 6073 Center point 6054 Scriber point 6074 Base 6057 Flat head screw 6058 Flat head screw 605 Slotted head nut 6060 Adjustable tie rod 606 Adjustable tie rod 6062 Tie rod 6063 Tie rod 6064 Tie rod 6065 Tie rod 6056 Stud 6066 Knurled head screw Quantity Supplied 2 pcs. pc. 2 pcs. pc. 2 pcs. Inch Order No. 56-62 Included in set 6050 Half round jaw 605 Half round jaw 6052 Plain jaw 6053 Center point 6054 Scriber point 6055 Base 6057 Flat head screw 6058 Flat head screw 605 Slotted head nut 6060 Adjustable tie rod 606 Adjustable tie rod 6062 Tie rod 6063 Tie rod 6064 Tie rod 6065 Tie rod 6056 Stud 6066 Knurled head screw Quantity Supplied * 2 pcs of half round jaw, plain jaw, stud, flat head screw, slotted head nut, adjustable tie rod, and knurled head screw are included in each set. Please note that the abovementioned Order No. indicates only set.. Gauge blocks in a stack can be clamped together After wringing square gauge blocks, a tie rod can be inserted through the center hole to clamp the blocks together for extra security. 2. A height reference standard can easily be made A precision height reference standard can be made easily and inexpensively using accessories such as the plain jaw and block base. 30 56-6 2 pcs. pc. 2 pcs. pc. 2 pcs. 3. A dedicated inspection jig can easily be made A dedicated inspection jig for periodic inspection of instruments can be made easily and inexpensively. 4. A wide measuring surface with cross-sectional dimensions of 24. x 24.mm is available. A square gauge block retains stable orientation both longitudinally and laterally. A wide range of applications is covered, including cutting tool positioning, angle measurement with a sine bar, taper measurement with a roller, and inspection of depth micrometers.

Half round jaw Scriber point 6054 Stud 6056 R L 24.7 W H ø6.7 Finished surface Order No. R L W H 6070.5mm 2mm 33.6mm 5.3mm 607 4.5mm 5mm 3.mm 0.3mm Flatness tolerance 0.5μm Parallelism tolerance of L 0.5μm Tolerance of L ±0.5μm Base 6074 6 8-32UNC Slotted head nut ø6.35 5.8 605 ø4.66 P=0.738 8-32UNC 8-32UNC Plain jaw 6072 58 0±0.00 A B 3. ø6.7 24.7 Center point 6073 2±0.0 24.7 3. Flatness tolerance 0.5μm Adjustable tie rod ø6.35 Flatness tolerance 0.2μm Parallelism tolerance 0.2μm A and B are finished surfaces P ø6.7 L No.8-32UNC d=4.66 P=0.738 P n n (Number of holes) 7.8 Finished surface M ø6.7 Finished surface 0±0.0005 Finished surface Flat head screw L 8-32UNC Order No. L No.8-32UNC d=4.66 6057P=0.738 3.6mm 6058 5.8mm Parallelism tolerance.5μm Flatness tolerance.5μm The surface within.5mm ( of edge is excluded ) Tie rod Stud L ø6.35 8-32UNC d=4.66 P=0.738 No.8-32UNC d=4.66 P=0.738 Knurled head screw 2 30 8-32UNC ø 6066 Contraction caused by the øno.8-32unc clamping force The minimum d=4.66 recommended p=0.738 torque to be applied to the clamping screws is approximately 600mN/m. The chart below shows the approximate length contraction of a 00mm gauge stack using typical torque values. Driver Torque Driver 600mN m Ordinary Driver 700-800mN m Contraction 0.2μm/00mm 0.3μm/00mm Order No. L M P n (Number of holes) 6060 24.5mm 3.85mm 6.35mm 4 606 86.5mm 3.5mm 6.35mm 8 Order No. L 6065 mm 6064 38mm 6063 57mm 6062 76mm Accessories used for combining square gauge blocks Overall length (mm) Min. 2 36 34 4 45 58 64 72 77 82 5 0 7 30 48 2 67 43 60 205 80 223 240 258 25 375 Order No. Included in set Max. 30 43 43 50 60 72 7 88 7 07 0 25 35 50 6 80 84 20 255 270 285 288 345 363 445 520 605 Slotted head nut 6058 2 2 2 2 2 2 Flat head screw 6057 2 2 2 2 2 2 2 2 2 2 2 2 2 2 6056 Stud 2 6065 6064 Tie rod 6063 6062 606 2 2 2 2 2 2 Adjustable tie rod 6060 2 2 2 2 2 2 3

Step Master Step Master is a gauge providing 4 small increments in height (steps) constructed from an assembly of 5 highly accurate steel or ceramic blocks. Each step is defined as the difference in height between the center of adjacent blocks, measured to a resolution of 0.0μm by using an interferometer with an accuracy tolerance of ±0.20μm. Steel and ceramic types are available to suit the application. Height differences are measured between the centers of adjacent steps. Ceramic type 56-48 Ceramic type 56-4 SPECIFICATIONS Steel type Order No. 56-8 56- Block No. 2 3 4 5 2 3 4 5 Cumulative step (μm) 0 0 5 7 8 0 300 400 450 470 Step value between adjacent blocks (μm) 0 5 2 300 00 50 20 Ceramic type Ord er No. 56-48 56-4 Block No. 2 3 4 5 2 3 4 5 Cumulative step (μm) 0 0 5 7 8 0 300 400 450 470 Step value between adjacent blocks (μm) 0 5 2 300 00 50 20 - -64: Provided with Calibration Certificate - -84: Provided with Calibration Certificate and Traceability System Chart DIMENSIONS 2 3 4 5 Block No. Unit: mm 5 25 300 00 50 20 µm 7 7 7 7 7 45 Adjacent step 6 (Max. height) R Magnified view of step Step value between adjacent blocks 2 3 4 5 No. - 2 No. 2-3 No. 3-4 No. 4-5 56-8, 56-48 0µm 5µm 2µm µm 56-, 56-4 300µm 00µm 50µm 20µm 32

Custom-made Blocks & Gages Mitutoyo can manufacture Gauge Blocks and reference gages to your size and design. Nominal size range 0.mm to 000mm (steel) 0.5mm to 500mm (ceramic) Nominal size increment 0.0005mm (up to 00mm) 0.00mm (over 00mm) Cross section (same as the standard product) Nominal length of 0mm or less: 30 x mm Nominal length of more than 0mm: 35 x mm Square types are also available. Special ultra-low expansion ceramic types are also available. Gauge Blocks and reference gages to your specifications (section dimensions) are available, including precision spacers which normally absorb much time and effort to manufacture in-house. Special processing including boring, step gaging and special marking are available. Consult us for details. Typical examples of custom-made gauge blocks and reference gages. Please enquire for price and delivery times for your particular requirements. (4) () (6) (5) (3) (7) (8) (2) () (0) () (2) (3) Ceramic () Square gauge block (2.005mm) (2) Rectangular gauge block (6.34mm) (3) Rectangular gauge block (20.64mm) (4) Rectangular gauge block (2.4mm) Steel (5) Square gauge block (2.2065mm) (6) Square gauge block (0.72mm) (7) Rectangular gauge block (3.5mm) (8) Rectangular gauge block (0.02mm) () Rectangular gauge block (.64mm) (0) Rectangular gauge block (6.56mm) () Rectangular gauge block (3.603mm) (2) Rectangular gauge block (.505mm) (3) Rectangular gauge block (0.555mm) Cylinder reference block for depth micrometer (ø60 x 50mm) Steel long rectangular block (5 x 0 x 200mm) Ceramic square block (24. x 24. x 2.3mm) (No-hole version of square gauge block) Ceramic reference plate 50 x 50 x 0mm ( flatness 0.3μm ) Ceramic stepped block (30 x 8 x 5mm, step: 0.5mm) Steel square block ( x x 6mm) Steel cylindrical block (ø3.08 x 2mm) Steel thin rectangular block (30 x 6 x 2.mm) Steel thin rectangular block (30 x 6 x.mm) 33

Maintenance Kit for Gauge Blocks Maintenance kit for gauge blocks includes all the necessary maintenance tools for removing burrs and contamination, and applying anti-corrosion treatment after use, etc. Recommendation for regular calibration Gauge blocks are often used to define a company s standard of length for manufacturing and as such must be reliable. This means that they need regular calibration to verify accuracy. (The problem of damage or corrosion should be addressed during use and blocks seriously affected must be discarded immediately.) The frequency of calibration depends on the tolerance requirements of the work, the amount of use and conditions under which the gage blocks are used. The most economical cycle for any particular set of gauge blocks is best determined by studying the calibration history. The list below indicates timings for a typical initial calibration cycle for the various grades of block. Application Cycle Grade (reference) Reference - 2 K Standard 2 K or 0 Inspection 2 0 or Shop floor 0.5 - or 2 As an accredited calibration laboratory, Mitutoyo offers a traceable calibration service for customers gauge blocks. Our regular calibration service features: Gauge blocks manufactured by any maker can be calibrated. Cleansing and removal of burrs. Central dimension and dimensional deviations of each block are measured. Calibration results are provided for immediate use and for building a calibration history of each block. *Order No. 56-650E; 56-650 Tools and accessories included:. Anti-corrosion oil (60000) (00ml, spray can) Used for both steel and tungstencarbide gauge blocks. 2. Ceraston (60645) (both sides finished by lapping) 3. Optical flat (58-7) (ø45, 2mm thickness, JIS Grade 3) Used to check the wringing of thin gauge blocks and for the presence of burrs. 4. Tweezers (600004) Used for handling thin gauge blocks. 5. Blower brush (600005) Used for blowing dust from measuring surfaces. 56-650 6. Cleaning paper (600006) (lens paper, 82 x 304mm, 500 pcs) Used for wiping off rust preventive oil and contamination. Lint free. 7. Artificial leather mat (B4 size) (600007) Used as a gauge block mat in order to avoid scratches on the work table 8. Reagent bottle (600008) (polyethylene container, 00ml) Bottle of wiping solution. (Mitutoyo employs n-heptane for solvent.). Gloves (60000) Used for handling large gauge blocks. Effective for the prevention of corrosion and thermal expansion. * 56-650E: Excluding anti-corrosive oil (60000) 56-650: including anti-corrosive oil (60000) is for domestic sales only. In the case of an order from overseas, place an order for 56-650E : excluding anti-corrosive oil, and order anti-corrosive oil (60000) separateiy. 34

Ceraston Accessory for Gauge Block Maintenance Alumina-ceramic abrasive stone for removing burrs from hard materials such as ceramics that ordinary stones cannot handle. Can be used both for steel gauge blocks and CERA blocks. Excellent in the ease of removing burrs and durability compared with Arkansas stones. Both sides can be used. 60644 50 (W) 50 (D) 20 (H) mm 60645 00 (W) 25 (D) 2 (H) mm Application example Removing burrs Figure Figure 2 Rubber Rubber CERASTON (Or Arkansas CERASTON stone* (Or ) Arkansas CERASTON stone* ) (Or Arkansas CERASTON stone* (Or ) Arkansas stone* ) () Wipe any dust and oil films from the gauge block and the Ceraston (or Arkansas stone) using a solvent. (2) Place the gauge block on the Ceraston so that the measuring face that has burrs is on the abrasive surface of the stone. While applying light pressure, move the gauge block to and fro about ten times (Fig. ). Use a block rubber for thin gauge blocks to apply even pressure (Fig. 2). (3) Check the measuring face for burrs with an optical flat. If the burrs have not been removed, repeat step (2). If burrs are too large, they may not be removed with an abrasive stone. If so, discard the gauge block. Note: The abrasive surface of a Ceraston must be made flat by lapping it from time to time. After lapping the Ceraston, the lapping powder must be completely removed from the surface to prevent the surface of the gauge block from being scratched. * Mitutoyo does not offer Arkansas stones. 35

23760 2376 Quick Guide to Precision Measuring Instruments Definition of the Meter The 7th General Conference of Weights and Measures in 83 decided on a new definition of the meter unit as the length of the path traveled by light in a vacuum during a time interval of /2 72 458 of a second. The gauge block is the practical realization of this unit and as such is used widely throughout industry. Selection, Preparation and Assembly of a Gauge Block Stack Select gauge blocks to be combined to make up the size required for the stack. () Take the following things into account when selecting gauge blocks. a. Use the minimum number of blocks whenever possible. b. Select thick gauge blocks whenever possible. c. Select the size from the one that has the least significant digit required, and then work back through the more significant digits. (2) Clean the gauge blocks with an appropriate cleaning agent. (3) Check the measuring faces for burrs by using an optical flat as follows: (5) Gently overlay the faces of the gauge blocks to be wrung together. There are three methods to use (a, b and c as shown below) according to the size of blocks being wrung: a. Wringing thick gauge blocks Cross the gauge blocks at 0 in the middle of the measuring faces. Rotate the gauge blocks while applying slight force to them. You will get a sense of wringing by sliding the blocks. 4 23 mm mm 23705 2370534 b.wringing a thick gauge block to a thin gauge block Overlap one side of a thin gauge block on one side of a thick gauge block. Slide the thin gauge block while pressing the entire overlapped area to align the measuring faces with each other. c.wringing thin gauge blocks To prevent thin gauge blocks from bending, first wring a thin gauge block onto a thick gauge block. Then, wring the other thin gauge block onto the first thin gauge block. 23 mm 4 mm Align the measuring faces with each other. Finally, remove the thick gauge block from the stack. a. Wipe each measuring face clean. b. Gently place the optical flat on the gauge block measuring face. c. Lightly slide the optical flat until interference fringes appear. Judgment : If no interference fringes appear, it is assumed that there is a large burr or contaminant on the measuring face. d. Lightly press the optical flat to check that the interference fringes disappear. Judgment 2: If the interference fringes disappear, no burr exists on the measuring face. Judgment 3: If some interference fringes remain locally while the flat is gently moved to and fro, a burr exists on the measuring face. If the fringes move along with the optical flat, there is a burr on the optical flat. e. Remove burrs, if any, from the measuring face using a flat, fine-grained abrasive stone. (4) Apply a very small amount of oil to the measuring face and spread it evenly across the face. (Wipe the face until the oil film is almost removed.) Grease, spindle oil, vaseline, etc., are commonly used. 23 mm 23760 Apply an optical flat to the surface of one thin gauge block to check the wringing state. Wipe the exposed measuring face(s) and continue building up the stack, in the same manner as above, until complete. Irregular interference fringes 36

Thermal Stabilization Time The following figure shows the degree of dimensional change when handling a 00mm steel gauge block with bare hands. Elongation (µm) 8 7 6 5 4 3 2 Time fingers are released The gauge block is held with five fingers. The gauge block is held with three fingers. 5 0 20 30 40 50 60 70 Lapse of time (minutes) Classification of Gauge Blocks by Shape Mitutoyo broadly divides gauge blocks into two categories according to the block shape. Rectangular gauge blocks 30 or 35mm* Nominal size Square gauge Specially blocks designed for long gauge blocks over 25mm which have two coupling holes on the body. 24. 0.05 0.2 24. Nominal size 2-ø0 L 0.2 Nominal size * Depends on the nominal size. More than 0mm 0mm or less Hole ø6.7mm 0 35 0.3 25±0.5 Airy point markers 25±0.5 Coupling holes in long gauge blocks Nominal size Square gauge blocks 24. 24. Nominal size minal size. Hole ø6.7mm 37

Gauge Block Calibration Gauge Block Comparator GBCD-250 Manual Comparator with Dual Gage Heads Measuring capability: Rectangular Gauge Blocks; Square Gauge Blocks (requires dedicated holder - optional accessory) Measuring method: Differential measurement between upper and lower gaging heads (dual head system) SPECIFICATIONS Metric Range 0.mm - 250mm Resolution 0.0000mm (0.0µm) GBCD-00A measures the length of rectangular gauge blocks in the size range 0.5mm to 00mm. It automatically compares a test block with an appropriate reference gauge block. The compensation result is not affected by the warp of thinner gauge blocks due to the use of upper and lower gaging heads (dual-head system). Measurement configuration: cycle of automatic comparison measurement with a standard gauge block. Compensation master for gauge block comparator Accuracy (Confidence level 5%) Comparison measurement of the same nominal length ±(0.03+0.3L/000)µm* L = Gauge block length (mm) Gauge Block Comparator GBCD-00A Automatic Comparator with Dual Gage Heads Accuracy (Confidence level 5%) Dimensional deviations between standard gauge block and measurement gauge block: ±3mm ±(0.03+0.3L/000)µm* L = Gauge block length (mm) Upper gage head Lower gaging head Operating conditions Type Measuring force Contact point Type Measuring force Contact point Laser Hologage 0.7N Carbide contact point of radius 20mm Laser Hologage 0.2N Carbide contact point Temperature: 20 C ± C of radius 5mm Humidity: 58%RH ±5%RH * Uncertainty of measurement at the 5% confidence level (not including the calibration error of the reference gauge block). Note: To denote your AC power cable add the following suffixes to the order No.: A for UL/CSA, D for CEE, DC for CCC, E for BS, K for KC, No suffix is required for JIS/00V 56-45-E2 SPECIFICATIONS Metric Special bridge-type block Accuracy in narrow range Upper gage head Range Resolution (20 C) Type Measuring force Contact point 0.5mm - 00mm 0.0000mm (0.0µm) ±(0.03+0.3L/000)µm* L = Gauge block length (mm) Mu-Checker N (00gf) Carbide contact point of radius of 20mm Lower gaging head Operating conditions Type Measuring force Contact point Mu-Checker 0.6N (60gf) Carbide contact point of radius 5mm Temperature: 20 C ± C Humidity: 58%RH ±5%RH * Uncertainty of measurement at the 5% confidence level (not including the calibration error of the reference gauge block). Note: To denote your AC power cable add the following suffixes to the order No.: A for UL/CSA, D for CEE, DC for CCC, E for BS, K for KC, No suffix is required for JIS/00V 38

Automatic Gauge Block Interferometer GBI (Interference fringe analyzing processing) Automatic primary-level measuring instrument for gauge block lengths between 0.mm and 250mm using optical interference. GBI is a Twyman-Green interferometer which employs the method of multiple wavelength coincidence to calibrate lengths more accurately. The GBI automatically detects the distribution of interference fringes with a CCD camera and processes the data. Measurement of parallelism and flatness is provided as well as lengths based on the phase shift method and the interference fringe analysis software. The intensity and wavelength of the He-Ne laser light sources are highly stable. This allows highly accurate and repeatable measurement. Both the refractive index of air and the thermal expansion of gauge blocks are automatically compensated for by computer which is linked to a thermometer, hygrometer and barometer. SPECIFICATIONS Metric Range Measuring Uncertainty (Coverage range factor k = 2) Number of gauge blocks that can be mounted on the measuring table Light sources Operating conditions 0.mm - 250mm 0.025µm+0.2x0-6 L L = Gauge block length (mm) 2 632.8nm frequency-stabilized He-Ne laser 543.5nm frequency-stabilized He-Ne laser 20±0.5 C Under mild temperature change without direct exposure to cold or warm air 3

Our products are classified as regulated items under Japanese Foreign Exchange and Foreign Trade Law. Please consult us in advance if you wish to export our products to any other country. If the purchased product is exported, even though it is not a regulated item (Catch-All controls item), the customer service available for that product may be affected. If you have any questions, please consult your local Mitutoyo sales office. Coordinate Measuring Machines Vision Measuring Systems Form Measurement Optical Measuring Sensor Systems 08 30 () B-(CR)HS, Printed in Japan Test Equipment and Seismometers Digital Scale and DRO Systems Small Tool Instruments and Data Management Specifications are subject to change without notice. Note: All information regarding our products, and in particular the illustrations, drawings, dimensional and performance data contained in this pamphlet, as well as other technical data are to be regarded as approximate average values. We therefore reserve the right to make changes to the corresponding designs, dimensions and weights. The stated standards, similar technical regulations, descriptions and illustrations of the products were valid at the time of printing. Only quotations submitted by ourselves may be regarded as definitive. Our products are classified as regulated items under Japanese Foreign Exchange and Foreign Trade Law. Please consult us in advance if you wish to export our products to any other country. If the purchased product is exported, even though it is not a regulated item (Catch-All controls item), the customer service available for that product may be affected. If you have any questions, please consult your local Mitutoyo sales office. Mitutoyo Corporation 20-, Sakado -Chome, Takatsu-ku, Kawasaki-shi, Kanagawa 23-8533, Japan T +8 (0) 44 83-8230 F +8 (0) 44 83-823 http://www.mitutoyo.co.jp