Mitutoyo 611168-541 Steel Gage Block 0.128 in Grade AS-1

Product Description

The MITUTOYO 611168-541 is a rectangular steel gage block measuring 0.128 inches in nominal length, manufactured to ASME Grade AS-1 accuracy standards. Gage blocks serve as dimensional reference standards for calibrating measurement instruments, setting comparators, and verifying part tolerances on the shop floor or in the metrology lab. This block ships with a Certificate of Inspection, confirming it meets the stated accuracy grade. Grade AS-1 represents a high level of dimensional accuracy suitable for calibration and inspection work. At 1 pound, it is a solid, stable reference piece appropriate for bench use in precision measurement environments.

This gage block is used in quality control, tool room, and metrology applications across manufacturing and machining operations. It is well suited for setting dial indicators, height gages, and other comparative measurement instruments. Dimensional inspection technicians, machinists, and quality engineers working in environments that require traceable measurement standards will find this block appropriate for ASME-compliant calibration and inspection workflows.

Key Features

• Nominal size of 0.128 inches for precise dimensional reference
• Grade AS-1 accuracy per ASME standards for calibration-grade performance
• Steel construction for durability and wear resistance in shop and lab use
• Includes Certificate of Inspection for traceability documentation
• Rectangular form compatible with standard gage block accessories and holders

Compatibility

Designed as an OEM-style precision reference standard for use with standard gage block sets, holders, and accessory components compatible with rectangular-form steel gage blocks meeting ASME dimensional specifications.

Installation Notes

Gage blocks are handled and used by metrology technicians, quality inspectors, and precision machinists. Before use, clean all contact surfaces thoroughly to remove oils, debris, and burrs that could affect measurement accuracy. Wring the block to mating surfaces using proper gage block wringing technique to prevent air gaps. Store the block in its case when not in use and avoid contact with abrasive surfaces to preserve the lapped faces.