Mitutoyo 611143-541 Steel Gage Block 0.103 in Grade AS-1

Product Description

The MITUTOYO 611143-541 is a rectangular steel gage block measuring 0.103 inches, manufactured to ASME Grade AS-1 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 a metrology lab. This block ships with a Certificate of Inspection, confirming it has been measured and documented against traceable standards. Grade AS-1 is a working-grade gage block appropriate for production calibration and inspection tasks requiring tight dimensional control. Machinists, quality technicians, and calibration specialists are the primary users of this type of precision tooling.

This gage block is suited for use in machine shops, tool rooms, quality control labs, and production inspection environments. It functions as a single-block reference standard or as part of a set when wringing multiple blocks to build up a target dimension. Applications include setting dial indicators, height gages, snap gages, and optical comparators to a known reference. Its 0.103 inch nominal size makes it a common incremental value for building combinations within a complete gage block set.

Key Features

• Grade AS-1 accuracy per ASME standards — suitable for production and inspection use
• Rectangular steel construction provides durability and wringability for block stacking
• Nominal size of 0.103 inches with five-decimal precision for exacting dimensional reference
• Includes Certificate of Inspection for traceability documentation
• Single-block package supports individual replacement within an existing set

Compatibility

Designed as an OEM-style replacement or individual addition compatible with standard rectangular steel gage block sets conforming to ASME B89.1.9 specifications.

Installation Notes

Gage blocks are handled and stored by metrology technicians and quality control personnel, not installed in the traditional trade sense. Before use, clean all mating surfaces with a lint-free cloth and an appropriate solvent to remove oils and debris that can affect wringing and measurement accuracy. When wringing blocks together, apply light pressure and a sliding motion — never force or snap blocks, as this can damage lapped surfaces. Store blocks in their case with desiccant to prevent corrosion on steel surfaces.