Mitutoyo 611163-531 Steel Gage Block 0.123 in Grade 0

Product Description

The MITUTOYO 611163-531 is a rectangular steel gage block measuring 0.123 inches in nominal length, manufactured to Grade 0 accuracy. Gage blocks are precision reference standards used to calibrate measuring instruments, verify tooling, and establish dimensional baselines in machining and inspection environments. This block meets ASME standards and ships with a Certificate of Inspection, confirming it has been measured and documented against traceable accuracy requirements. Grade 0 blocks are suited for laboratory and tool room applications where tighter tolerances are required compared to working-grade blocks. Machinists, quality technicians, and metrologists are the primary users of this type of precision reference standard.

This gage block is used in dimensional inspection and calibration workflows across manufacturing, tool rooms, and metrology labs. It serves as a reference standard for setting comparators, height gages, snap gages, and similar instruments. Rectangular gage blocks of this size are commonly used in precision setups requiring sub-inch reference dimensions. The 0.123-inch nominal size makes it a practical building block when wringing combinations for specific stack heights. It is appropriate for both light industrial and precision laboratory environments where ASME-grade accuracy is required.

Key Features

• Grade 0 accuracy per ASME standards for tight tolerance inspection work
• Rectangular steel construction for durability and wringability
• Nominal length of 0.123 inches for precise dimensional reference
• Includes Certificate of Inspection confirming traceable measurement verification
• Single-piece packaging suitable for individual replacement or kit supplementation

Compatibility

Designed as an OEM-style precision reference standard compatible with standard rectangular gage block sets and accessories requiring a Grade 0 steel block at the 0.123-inch nominal size per ASME specifications.

Installation Notes

Gage blocks are handled and stored by quality technicians and metrologists following established metrology practices. Before use, clean all mating surfaces with an appropriate solvent to remove oils and debris that can affect wringing and accuracy. Store the block in its case when not in use to prevent corrosion and mechanical damage. Do not drop or strike the block against hard surfaces, as even minor edge damage can compromise calibrated accuracy.