Mitutoyo 611201-541 Steel Gage Block 1 Inch AS-1

Product Description

The MITUTOYO 611201-541 is a rectangular steel gage block machined to a nominal size of 1.00000 inches and certified to Accuracy Grade AS-1 per ASME standards. Gage blocks are precision reference standards used to calibrate measuring instruments, set comparators, and verify dimensional tolerances on the shop floor or in a metrology lab. Each block ships with a Certificate of Inspection, confirming it has been measured and documented against traceable reference standards. At Grade AS-1, this block meets stringent dimensional tolerances appropriate for calibration and inspection work. Machinists, quality technicians, and metrologists are the primary users.

This gage block is suited for dimensional metrology applications in both production and laboratory environments. Typical uses include setting dial indicators and electronic comparators, qualifying fixture components, and serving as a transfer standard during incoming inspection. The 1-inch nominal size is a common reference block kept in most gage block sets and individual calibration setups across general manufacturing, toolroom work, and quality assurance departments.

Key Features

• Nominal size of 1.00000 inches for precise dimensional reference
• Accuracy Grade AS-1 per ASME standards for calibration and inspection use
• Rectangular steel construction for durability and dimensional stability
• Includes Certificate of Inspection for traceability documentation
• Individual block packaging allows replacement of worn or damaged set members

Compatibility

Designed as a standard rectangular gage block for use with ASME-compliant gage block sets and metrology equipment requiring a 1-inch reference standard.

Installation Notes

Gage blocks are handled by metrology technicians and quality professionals. Always clean and deburr mating surfaces before wringing blocks together to prevent damage to the lapped faces. Store blocks in their protective case away from moisture and temperature extremes to maintain dimensional stability. Follow your facility calibration interval schedule and handle with care to avoid corrosion or surface damage.