Mitutoyo 611217-531 Steel Gage Block 0.75 in Grade 0

Product Description

The MITUTOYO 611217-531 is a rectangular steel gage block measuring 0.75 inches in overall length, manufactured to Grade 0 accuracy. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, set comparators, and verify dimensional tolerances on the shop floor or in the metrology lab. Grade 0 represents a high level of dimensional accuracy suitable for general inspection and production calibration work. Each unit ships with a Certificate of Inspection, confirming that the block has been individually verified against traceable standards. Typically handled by quality technicians, metrologists, and precision machinists.

This gage block is suited for dimensional calibration tasks in manufacturing, toolroom, and inspection environments. It serves as a reference standard when setting dial indicators, electronic height gages, and other comparative measuring tools. The 0.75-inch size fills a common gap in calibration sets and can be used as a standalone reference or combined with other gage blocks in a wringing stack to achieve a target dimension. Applicable in both production-floor QC and laboratory settings where ASME standards are specified.

Key Features

• Grade 0 accuracy per ASME standards for reliable dimensional reference
• 0.75-inch nominal size, precision-ground rectangular steel construction
• Includes Certificate of Inspection for traceability documentation
• Steel material provides durability and resistance to wear during repeated use
• Rectangular form compatible with wringing to other gage blocks for compound measurements

Compatibility

Designed as an OEM-style precision reference standard conforming to ASME gage block specifications, suitable for use with standard rectangular gage block accessories and holders in calibration and inspection applications.

Installation Notes

Gage blocks are handled by quality technicians and metrologists and do not require electrical or mechanical installation. Keep contact surfaces clean and free of burrs before wringing; use lint-free wiping cloths and appropriate cleaning solvents. Store blocks in their protective case when not in use to prevent corrosion and surface damage. Follow facility calibration procedures and applicable ASME B89 standards when using gage blocks as traceable reference standards.