Mitutoyo 614187-531 Steel Gage Block 0.147 in Grade 0

Product Description

The MITUTOYO 614187-531 is a square steel gage block with a nominal size of 0.147 inches and an accuracy rating of Grade 0. Gage blocks serve as dimensional reference standards used to calibrate measuring instruments, set up comparators, and verify part dimensions on the shop floor or in a metrology lab. This block is manufactured to ASME Grade 0 tolerances, placing it in the inspection-grade tier suitable for high-precision measurement work. A Certificate of Inspection is included, confirming that the block meets stated accuracy requirements at the time of manufacture. Licensed metrologists, calibration technicians, and quality control professionals are the primary users of this type of tooling.

This gage block is suited for use in quality assurance labs, tool rooms, and precision machining environments where traceable dimensional references are required. Typical applications include calibrating micrometers, vernier calipers, and height gages, as well as setting up surface plate inspection routines. The 0.147-inch size fills a specific increment in a gage block set or serves as a standalone reference for a targeted measurement need. Both industrial and metrology-lab environments at the inspection or calibration level are appropriate settings for this block.

Key Features

• Grade 0 accuracy per ASME standards, suitable for inspection-level metrology
• Steel construction provides durability and dimensional stability
• 0.147-inch nominal size for precise dimensional referencing
• Includes Certificate of Inspection for traceability documentation
• Square block geometry for consistent wringing and stack-up use

Compatibility

Designed as an OEM-grade replacement or standalone reference block compatible with standard gage block sets and accessories designed for square-style steel gage blocks conforming to ASME dimensional standards.

Installation Notes

Gage blocks are handled and stored by calibration technicians and metrologists. Keep contact surfaces clean and free of burrs before wringing blocks together to avoid damage to the lapped faces. Store in a protective case away from humidity and temperature extremes to maintain dimensional stability. Follow ASME B89.1.9 handling guidelines when using blocks for inspection or calibration purposes.