Value Collection 630-73306 Square Steel Gage Block Grade 0

Product Description

The VALUE COLLECTION 630-73306 is a square steel gage block measuring 0.3 inches, manufactured to Grade 0 accuracy. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, set comparators, and verify dimensional accuracy on the shop floor or in the calibration lab. This block ships with NIST certification documentation, confirming traceability to national measurement standards. The steel construction provides long-term dimensional stability under normal workshop conditions. Grade 0 designation indicates a high level of flatness, parallelism, and length accuracy, making it appropriate for calibration and inspection tasks that demand reliable, repeatable measurements.

This gage block is suited for use in machine shops, tool rooms, quality control labs, and metrology environments. It serves as a reference standard for setting up surface plates, calibrating micrometers, dial indicators, and height gages, and verifying part dimensions against a known standard. The 0.3-inch size fills a specific slot in a gage block set or functions as a standalone reference for setups requiring that precise dimension. Machinists, quality technicians, and metrologists are the primary users.

Key Features

• Grade 0 accuracy for high-precision calibration and inspection work
• Steel construction for dimensional stability and wear resistance
• Nominal size of 0.3 inches (0.30000 inches to five decimal places)
• Includes NIST certification for measurement traceability
• Square geometry allows consistent wringing and stable surface contact

Compatibility

Designed as a standalone Grade 0 steel gage block suitable for use with standard gage block accessories and holders in calibration and dimensional inspection applications.

Installation Notes

Gage blocks should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin contact. Before use, inspect the measuring faces for burrs or surface damage and clean with an appropriate gage block cleaning solution. Store the block in its protective case when not in use to prevent thermal variation and surface wear. Gage block calibration intervals should follow the requirements of the applicable quality management system or metrology program.