Value Collection 630-31006 Steel Gage Block 1 Inch AS-1

Product Description

The VALUE COLLECTION 630-31006 is a rectangular steel gage block ground and lapped to Grade AS-1 accuracy. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, set comparators, and verify dimensional tolerances on the shop floor or in a metrology lab. This block measures exactly 1.00000 inches and includes a NIST certification, confirming traceable accuracy to national measurement standards. It is intended for use by machinists, quality technicians, and metrology professionals who require a reliable, documented reference dimension.

This gage block is suited for dimensional calibration and inspection tasks in manufacturing, toolroom, and quality-control environments. It functions as a standalone reference or as part of a wringing stack to build up composite dimensions. The Grade AS-1 accuracy rating makes it appropriate for both production verification and instrument calibration work. The included NIST certification documentation supports ISO and other quality-system audit requirements.

Key Features

• Grade AS-1 accuracy for tight dimensional reference applications
• Nominal size of 1.00000 inches for precise, traceable reference
• Rectangular steel construction for durability and wring-ability
• Includes NIST certification confirming traceable measurement standards
• Single-piece packaging — ready to use out of the box

Compatibility

Designed as an OEM-style replacement and general-use precision reference standard compatible with standard gage block accessories including holders, cases, and wringing fixtures designed for rectangular steel gage blocks.

Installation Notes

Gage blocks are handled by metrology technicians and precision machinists — not installed in the traditional sense, but conditioned and wrung into service. Clean all surfaces with a lint-free cloth and appropriate solvent before wringing to prevent contamination and surface damage. Store the block in its protective case away from temperature extremes to preserve dimensional stability. Never drop or stack gage blocks loosely, as nicks or burrs will compromise accuracy.