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The MITUTOYO 614183-531 is a square steel gage block with a nominal size of 0.143 inches, manufactured to Grade 0 accuracy standards per ASME specifications. Gage blocks at this accuracy grade serve as precision dimensional references used to calibrate measuring instruments, verify part dimensions, and establish reference standards on the shop floor or in the metrology lab. Each block ships with a Certificate of Inspection, confirming that the block has been individually verified against traceable standards. Machinists, quality technicians, and metrologists rely on Grade 0 blocks for close-tolerance inspection work where lower-grade references are not sufficient.
This gage block is suited for use in machine shops, tool rooms, quality control labs, and calibration facilities handling precision measurement tasks. It functions as a length standard for setup, inspection, and instrument calibration in applications requiring dimensional accuracy consistent with ASME gage block standards. The square geometry allows stable stacking and wringing with compatible blocks of the same series for building up longer reference dimensions.
Designed as an OEM-style precision reference block compatible with standard ASME gage block sets and accessories used in metrology and dimensional inspection applications.
Gage blocks are handled and used by quality technicians and metrologists in calibration and inspection environments. Blocks should be cleaned with appropriate solvents before and after use to prevent corrosion and maintain wringing surface integrity. Store in the provided case away from temperature extremes to preserve dimensional stability. Do not drop or impact the block, as this can alter surface flatness and void calibration traceability.
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