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The MITUTOYO 516-302-26 is an 81-piece ceramic rectangular gage block set covering a measurement range of 0.05 to 4 inches. Manufactured from ceramic material, these blocks deliver dimensional stability and wear resistance suited for precision measurement work in tool rooms, calibration labs, and quality control environments. The set meets ASME B89.1.9-2002 standards and carries Accuracy Grade 0, which represents tight tolerances across the full range of blocks. Each block is individually serialized, and an inspection certificate is included. Metrology technicians, machinists, and calibration specialists use sets like this for machine setup, gauge calibration, and surface plate work.
This set is appropriate for both production floor and laboratory use wherever precise linear measurement or gauge calibration is required. The 81-piece configuration covers step increments of 0.0001 inch (9 blocks), 0.001 inch (49 blocks), 0.05 inch (19 blocks), and 1.000 inch (4 blocks), providing broad combinatorial coverage for building up virtually any dimension within the stated range. The ceramic construction makes these blocks well-suited for environments where thermal stability and corrosion resistance are priorities.
Designed for use as a general-purpose precision gage block set in tool rooms, metrology labs, and quality control departments requiring ASME B89.1.9-2002 Grade 0 ceramic blocks.
Gage blocks should be handled by metrology technicians or trained machinists following standard wringing and cleaning procedures. Always allow blocks to thermally stabilize at room temperature before use to ensure measurement accuracy. Blocks should be cleaned with an appropriate solvent and stored in their case when not in use to prevent surface damage. Do not drop or slide blocks against each other without proper wringing technique, as this can damage the lapped surfaces.
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