Mitutoyo 611205-541 Steel Gage Block 5 in Grade AS-1

Product Description

The MITUTOYO 611205-541 is a rectangular steel gage block ground and lapped to Grade AS-1 accuracy, conforming to ASME standards. Gage blocks of this grade serve as dimensional reference standards used to calibrate measuring instruments, set comparators, and verify machined part tolerances. At exactly 5.00000 inches in nominal length, this block delivers the precise dimensional reference required in quality control labs, tool rooms, and precision machining environments. A Certificate of Inspection is included with each unit, documenting traceability and conformance to stated accuracy requirements. Licensed metrologists, quality technicians, and precision machinists are the typical end users.

This gage block is suited for use in industrial metrology applications where dimensional accuracy and traceability to national standards are required. It is appropriate for calibration labs, inspection departments, and tool rooms in both manufacturing and repair environments. The 5.00000-inch nominal size makes it a practical reference for setups requiring longer-range dimensional standards. It is typically used in conjunction with other gage blocks in a wringing stack or as a standalone reference for instrument calibration.

Key Features

• Grade AS-1 accuracy conforming to ASME standards for high-precision dimensional reference
• Nominal length of 5.00000 inches for longer-range calibration and setup applications
• Steel construction for durability and dimensional stability in shop and lab environments
• Includes Certificate of Inspection documenting accuracy and traceability
• Rectangular form compatible with standard wringing and stacking techniques

Compatibility

Designed as an OEM-style precision reference standard compatible with standard rectangular gage block accessories, holders, and wringing sets used in industrial metrology applications.

Installation Notes

Gage blocks are precision instruments and must be handled by qualified metrologists or trained quality technicians. Before use, clean mating surfaces thoroughly to remove oil, debris, and burrs that could affect accuracy or damage the lapped faces. Store blocks in their protective case when not in use to prevent corrosion and surface damage. Do not wring blocks in environments with temperature extremes, as thermal expansion will affect dimensional accuracy.