Mitutoyo 614188-531 Steel Gage Block 0.148 in Grade 0

Product Description

The MITUTOYO 614188-531 is a square steel gage block with a nominal length of 0.148 inches, manufactured to ASME Grade 0 accuracy standards. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, set comparators, and verify dimensional tolerances in machining and inspection environments. This block ships with a Certificate of Inspection, confirming it meets the stated accuracy grade at the time of manufacture. Grade 0 blocks are intended for calibration lab and toolroom use where tighter tolerances are required. Metrology technicians, quality control inspectors, and precision machinists are the primary users of this type of reference standard.

This gage block is suited for use in inspection rooms, tool cribs, and calibration labs where traceable dimensional references are required. It is appropriate for setting dial indicators, bore gages, and height gages, as well as for verifying the accuracy of micrometers and calipers. The 0.148-inch dimension makes it useful as a slip block within a set or as a standalone reference for a specific nominal dimension in a quality assurance workflow.

Key Features

• Grade 0 accuracy per ASME standards for high-precision calibration and inspection use
• Steel construction provides durability and wear resistance under repeated wringing and handling
• 0.148-inch nominal length for specific dimensional reference applications
• Includes Certificate of Inspection for traceability documentation
• Square geometry compatible with standard gage block accessories and holders

Compatibility

Designed as an OEM-style precision reference standard for use with standard gage block accessories, holders, and inspection setups requiring an ASME Grade 0 square steel gage block.

Installation Notes

Gage blocks are handled and used by metrology technicians and quality control personnel, not installed in a mechanical system. Clean block surfaces with lint-free cloth and appropriate solvent before and after use to prevent corrosion and maintain surface finish. Store blocks in their protective case when not in use and avoid contact with abrasive surfaces. Wring blocks together only on clean, flat surfaces using proper technique to avoid scoring the precision faces.