Mitutoyo 611160-541 Steel Gage Block 0.12 in Grade AS-1

Product Description

The MITUTOYO 611160-541 is a rectangular steel gage block measuring 0.12 inches in overall length, manufactured to ASME Grade AS-1 accuracy. Gage blocks are precision ground and lapped reference standards used to calibrate measuring instruments, set comparators, and verify dimensional accuracy in quality control environments. This block ships with a Certificate of Inspection, confirming it has been verified to Grade AS-1 tolerances. Machinists, metrologists, and toolroom technicians working in production or inspection settings rely on gage blocks like this one to maintain traceable measurement standards across shop floor and laboratory applications.

This gage block is suited for use in machine shops, toolrooms, calibration labs, and quality inspection departments where tight dimensional tolerances must be verified or transferred. Its 0.12-inch nominal size makes it a useful increment for building up stacks to specific measurement targets. Applications include surface plate work, comparator setup, height gage calibration, and optical flat inspection. The steel construction provides durability for repeated use in industrial environments while maintaining the wringing surface quality required for accurate stacking.

Key Features

• Grade AS-1 accuracy per ASME standards for precision dimensional reference work
• 0.12-inch nominal size suitable for gage block stacking combinations
• Steel construction delivers durability and reliable wringing surface characteristics
• Includes Certificate of Inspection for traceability documentation
• Single-piece packaging supports individual replacement or set supplementation

Compatibility

Designed as an OEM-style precision reference standard compatible with standard rectangular gage block sets and accessories conforming to ASME B89.1.9 specifications for steel gage blocks.

Installation Notes

Gage blocks are handled and set up by machinists, metrologists, and calibration technicians rather than installed in the traditional sense. Clean all wringing surfaces with an appropriate solvent and lint-free cloth before use to prevent contamination that can affect accuracy or cause corrosion. Store the block in its case when not in use and apply a light coat of gage block oil or anti-corrosion fluid for long-term storage. Do not drop or slide blocks across abrasive surfaces, as damage to the lapped faces will compromise accuracy.