Mitutoyo 611151-541 Steel Gage Block 0.111 in Grade AS-1

Product Description

The MITUTOYO 611151-541 is a rectangular steel gage block measuring 0.111 inches in length, manufactured to ASME Grade AS-1 accuracy. Gage blocks are precision reference standards used to calibrate measurement tools, verify dimensional accuracy, and set comparators in metrology and quality-control environments. Each block delivers a highly accurate reference dimension traceable to national standards. This block includes a Certificate of Inspection, confirming it meets Grade AS-1 tolerances. Machinists, calibration technicians, and quality engineers rely on gage blocks like this one for reliable shop-floor and lab measurement tasks.

This gage block is suited for use in tool rooms, metrology labs, manufacturing facilities, and quality-control departments where precise dimensional reference is required. It functions as a single-block reference for 0.111-inch measurements or as part of a combination set built up from multiple blocks. Applications include calibrating micrometers, vernier calipers, height gauges, and comparators in both production and inspection settings. Its steel construction provides durability for frequent use in demanding shop environments.

Key Features

• Grade AS-1 accuracy per ASME standards for precise dimensional reference
• Steel construction for durability and wear resistance in shop and lab use
• 0.111-inch nominal size for incremental block combination builds
• Includes Certificate of Inspection confirming conformance to stated tolerances
• Rectangular form compatible with standard gage block wringing and accessory systems

Compatibility

Designed as an OEM-style precision reference block suitable for use with standard rectangular gage block sets and accessories conforming to ASME gage block specifications.

Installation Notes

Gage blocks are handled and set up by calibration technicians and metrologists rather than installed in the traditional sense. Before use, clean all mating surfaces thoroughly to remove oils, debris, and burrs that could affect accuracy or damage the lapped faces. When wringing blocks together, use proper wringing technique to avoid scratching surfaces. Store blocks in a protective case away from moisture and temperature extremes to preserve dimensional stability.