Value Collection 630-21216 Steel Gage Block 0.121 in Grade 0

Product Description

The VALUE COLLECTION 630-21216 is a rectangular steel gage block measuring 0.121 inches, manufactured to Grade 0 accuracy standards. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, set comparators, and verify dimensional tolerances on the shop floor or in the metrology lab. This block includes NIST certification, confirming its dimensional accuracy is traceable to national measurement standards. Grade 0 designation indicates a high level of flatness, parallelism, and dimensional tolerance suitable for demanding calibration and inspection work. Machinists, quality technicians, and metrologists are the primary users of this type of gage block.

This gage block is suited for tool rooms, quality control departments, and production inspection environments where traceable dimensional standards are required. It is used to verify and calibrate micrometers, calipers, height gages, and comparator stands. The 0.121-inch size makes it a useful individual block for building up stacked dimensions or as a standalone reference standard in light industrial and precision manufacturing settings.

Key Features

• Grade 0 accuracy for high-precision calibration and inspection applications
• NIST-traceable certification included for documented measurement traceability
• Steel construction provides durability and dimensional stability
• Rectangular form allows wringing to other gage blocks for stacked dimensions
• 0.121-inch nominal size suitable for building precise dimensional stacks

Compatibility

Designed as a standard rectangular gage block compatible with conventional wringing and stacking setups alongside other inch-series gage blocks conforming to ASME B89.1.9 or equivalent standards.

Installation Notes

Gage blocks are handled and stored by quality technicians and metrologists, not installed in the traditional sense. Blocks should be cleaned with a lint-free cloth and appropriate solvent before and after each use to prevent corrosion and contamination. Wring blocks together with a light sliding and rotating motion rather than forcing them into contact. Store in the provided case away from temperature extremes and humidity to maintain dimensional integrity.