Mitutoyo 611188-531 Steel Gage Block 0.148 in Grade 0

Product Description

The MITUTOYO 611188-531 is a rectangular steel gage block with a nominal size of 0.148 inches, manufactured to Grade 0 accuracy. Gage blocks serve as dimensional reference standards used to calibrate measuring instruments, set comparators, and verify part tolerances in precision measurement applications. This block meets ASME standards and ships with a Certificate of Inspection, confirming traceable accuracy at the Grade 0 level. Grade 0 gage blocks are suited for laboratory and inspection-room use where tighter dimensional tolerances are required. Machinists, metrologists, and quality control technicians working in tool rooms and inspection environments are the primary users of this type of precision reference block.

This gage block is appropriate for use in dimensional metrology labs, quality assurance departments, and precision machine shops. It functions as a length reference standard for calibrating micrometers, calipers, height gages, and similar instruments. The rectangular form allows wringing to other gage blocks for building up specific stack heights. Grade 0 accuracy suits applications where a higher level of dimensional certainty is required compared to working-grade blocks, making it a fit for inspection-room and standards-lab environments rather than general shop-floor use.

Key Features

• Grade 0 accuracy per ASME standards for precision dimensional reference
• Nominal size of 0.148 inches for direct measurement and stack-building applications
• Steel construction provides durability and stable dimensional properties
• Includes Certificate of Inspection for traceability documentation
• Rectangular form supports wringing to other gage blocks in a set

Compatibility

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

Installation Notes

Gage blocks are handled and stored by metrology technicians or qualified inspection personnel. Blocks should be cleaned with an appropriate gage-block cleaning solution before and after use to prevent corrosion and contamination. Store blocks in a protective case away from temperature extremes and humidity. Never wring blocks together using excessive force, and avoid contact with abrasive surfaces to preserve the lapped reference faces.