Mitutoyo 614168-531 Square Steel Gage Block 0.128 in Grade 0

Product Description

The MITUTOYO 614168-531 is a square steel gage block with a nominal length of 0.128 inches, manufactured to Accuracy Grade 0 tolerances per ASME standards. Gage blocks of this grade serve as dimensional reference standards used to calibrate measuring instruments, set comparators, and verify part dimensions to tight tolerances. Each block ships with a Certificate of Inspection, confirming it has been measured and documented at the factory. Grade 0 blocks are suited for metrology labs, quality departments, and precision machining environments where traceable dimensional standards are required. Installation and handling are performed by metrologists, quality technicians, and precision machining professionals.

This 0.128-inch gage block is used in dimensional metrology applications across manufacturing, tool and die, aerospace, and general precision machining environments. It functions as a standalone reference standard or as part of a set used to build up specific dimensions by wringing blocks together. Typical use cases include calibrating micrometers, calipers, and height gages, as well as setting dial indicator comparators on surface plates. The steel construction provides the durability and stability required for repeated use in workshop and laboratory settings.

Key Features

• Nominal length of 0.128 inches for precise dimensional reference
• Grade 0 accuracy per ASME standards, suitable for lab and quality-control use
• Steel construction for durability and long-term dimensional stability
• Includes a Certificate of Inspection for traceability documentation
• Square geometry allows wringing with other gage blocks to build up compound dimensions

Compatibility

Designed as an OEM-style dimensional reference standard compatible with standard gage block sets and accessories used in ASME-compliant metrology applications.

Installation Notes

Gage blocks should be handled by metrology technicians or quality professionals using lint-free gloves to prevent surface contamination and corrosion from skin oils. Before use, clean block surfaces with an appropriate solvent and inspect for burrs or wear that could affect accuracy. Store blocks in their protective case when not in use to prevent damage to lapped surfaces. Follow ASME B89.1.9 handling and care guidelines to maintain grade-level accuracy over time.