Mitutoyo 611613-531 Steel Gage Block 3 Mm Grade 0

Product Description

The MITUTOYO 611613-531 is a rectangular steel gage block ground and lapped to Grade 0 accuracy tolerances, conforming to ASME standards. Gage blocks are precision reference standards used to calibrate measuring instruments, set comparators, and verify dimensional accuracy on the shop floor or in a metrology lab. This block measures 3 mm in nominal length and ships with a Certificate of Inspection documenting its measured deviation. At 0.5 pounds, the block is sized for bench use by quality technicians, machinists, and calibration professionals who require a traceable dimensional reference.

This gage block is suited for dimensional calibration and inspection applications in manufacturing, toolroom, and quality-assurance environments. Grade 0 accuracy places it in the inspection-grade tier, appropriate for calibrating working-grade gage blocks, setting precision instruments, and verifying tight-tolerance part dimensions. Typical users include quality engineers, calibration technicians, and precision machinists working in both production and laboratory settings.

Key Features

• Grade 0 accuracy per ASME standards for inspection-level dimensional reference
• Steel construction provides durability and wear resistance for repeated use
• 3 mm nominal length for short-range dimensional reference and stacking sets
• Includes Certificate of Inspection for traceability documentation
• Rectangular form compatible with standard gage block accessories and holders

Compatibility

Designed as an OEM-style replacement or supplemental block for use with standard rectangular gage block sets and accessories conforming to ASME gage block specifications.

Installation Notes

Gage blocks are precision instruments and should be handled by calibration technicians or qualified metrology personnel. Store blocks in a protective case away from moisture, chips, and contaminants to prevent corrosion and surface damage. Before use, allow the block to thermally stabilize to the measurement environment, typically 68 degrees F per ASME guidelines. Never stack or wring blocks on abrasive or contaminated surfaces, as burrs or debris will damage the lapped measuring faces.