Value Collection 630-33006 Steel Gage Block 3 in Grade AS-1

Product Description

The VALUE COLLECTION 630-33006 is a rectangular steel gage block measuring exactly 3.00000 inches, manufactured to Grade AS-1 accuracy. Gage blocks are precision reference standards used to calibrate measuring instruments, verify part dimensions, and set up comparators on the shop floor or in the metrology lab. This block includes NIST certification, confirming that its nominal dimension has been traceable to national measurement standards. Grade AS-1 is a high-accuracy laboratory and inspection grade suited for demanding dimensional verification work. Machinists, quality technicians, and metrologists rely on gage blocks as a stable, reliable reference when tolerance requirements leave no room for error.

This block is appropriate for use in machine shops, tool rooms, quality control labs, and inspection departments in both industrial and manufacturing environments. Its 3-inch nominal size covers a commonly needed reference dimension for setup work, comparator zeroing, and instrument calibration. The included NIST certification documentation supports traceability requirements in ISO 9001, AS9100, and similar quality management systems where documented calibration records are mandatory.

Key Features

• Grade AS-1 accuracy for high-precision metrology and inspection applications
• Nominal size of 3.00000 inches provides a stable dimensional reference
• Steel construction offers durability and resistance to wear during repeated use
• Includes NIST certification for measurement traceability compliance
• Rectangular form compatible with standard gage block wringing and stacking practice

Compatibility

Designed as a standalone precision reference standard for use with comparators, height gages, and calibration fixtures that accept rectangular gage blocks conforming to ASME B89.1.9 grade designations.

Installation Notes

Gage blocks should be handled by qualified metrology or quality personnel following proper gage block handling procedures. Store blocks in their protective case away from temperature extremes, as thermal expansion can affect accuracy. Clean contact faces with an appropriate gage block cleaning solution before wringing or use. Never drop or slide blocks against abrasive surfaces, as surface damage will compromise accuracy.