Value Collection 630-21006 Steel Gage Block 1 in Grade 0

Product Description

The VALUE COLLECTION 630-21006 is a Grade 0 rectangular steel gage block measuring 1.00000 inches, supplied with NIST certification. Gage blocks are precision-ground reference standards used to establish, verify, or transfer linear measurements in machining, quality control, and calibration environments. Grade 0 denotes tight dimensional tolerance, making this block appropriate for inspection-grade applications where measurement traceability to national standards is required. It is typically used by machinists, metrologists, and quality technicians who need a certified dimensional reference for comparator setups, surface plate work, and instrument calibration.

This gage block is suited for tool rooms, inspection departments, and metrology labs in both manufacturing and industrial settings. The 1.00000-inch nominal size makes it a common building-block dimension for stacking sets used to achieve compound measurements. Its NIST certification provides a documented traceability chain, which is often required in regulated manufacturing environments, aerospace applications, and ISO-compliant quality systems.

Key Features

• Grade 0 accuracy for inspection-level dimensional reference work
• Nominal size of 1.00000 inches for precise stacking and measurement transfer
• Steel construction for durability and long-term dimensional stability
• Includes NIST certification for documented measurement traceability
• Rectangular form compatible with standard gage block holders and accessories

Compatibility

Designed as an OEM-style replacement or standalone addition to rectangular steel gage block sets used in standard tool room and inspection applications.

Installation Notes

Gage blocks are precision instruments and should be handled by qualified metrology or inspection personnel. Store blocks in their protective case when not in use to prevent corrosion and surface damage. Before use, clean contact surfaces with an appropriate lint-free cloth and gage block cleaning solution. Wringing surfaces together requires clean, flat, burr-free faces — inspect for damage before each use.