Mitutoyo 611216-531 Steel Gage Block 0.65 in Grade 0

Product Description

The MITUTOYO 611216-531 is a rectangular steel gage block with a nominal length of 0.65 inches, manufactured to Grade 0 accuracy. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, set comparators, and verify dimensional tolerances in machine shops, metrology labs, and quality control environments. This block meets ASME standards and ships with a Certificate of Inspection, confirming it has been measured and documented to Grade 0 tolerances. Grade 0 blocks are appropriate for lab-grade calibration work and precision inspection tasks. Machinists, metrologists, and quality technicians are the primary users.

This gage block is suited for dimensional calibration and inspection applications in both shop-floor and laboratory settings. It serves as a reference standard for setting up height gages, micrometers, bore gages, and other precision measuring instruments. The 0.65-inch nominal size makes it a useful component in gage block sets assembled for specific measurement ranges. It is intended for professional use wherever tight dimensional verification is required.

Key Features

• Grade 0 accuracy per ASME standards for high-precision calibration work
• Rectangular steel construction ground to a nominal length of 0.65 inches
• Includes Certificate of Inspection for traceability documentation
• Steel material provides durability and wear resistance in repeated use
• Compliant with ASME gage block standards

Compatibility

Designed as an OEM-style precision reference standard compatible with standard gage block accessories including holders, jaws, and scribers used in professional metrology and dimensional inspection setups.

Installation Notes

Gage blocks should be handled by trained metrology or quality control personnel. Before use, clean all mating surfaces with an appropriate gage block cleaning solution to remove oils and debris that can affect accuracy. Store blocks in the provided case away from temperature extremes, as thermal expansion can affect measurement accuracy. Do not drop or stack blocks on hard surfaces, as surface damage will compromise Grade 0 tolerances.