Value Collection 630-72056 Steel Gage Block 0.10005 in Grade 0

Product Description

The VALUE COLLECTION 630-72056 is a square steel gage block ground and lapped to Grade 0 accuracy tolerances. Gage blocks serve as the physical dimensional standard in precision measurement work, providing a known reference length for calibrating instruments, setting comparators, and verifying workpiece dimensions. This block measures 0.10005 inches in nominal size and is machined from steel to deliver the flatness, parallelism, and surface finish required at Grade 0. Machinists, tool and die makers, quality technicians, and metrologists use gage blocks as foundational reference standards on the shop floor and in calibration labs.

This block is suited for precision measurement applications in manufacturing, toolroom, and quality assurance environments. It can be used individually or wrung together with other gage blocks in a set to build up composite dimensions. Typical applications include setting dial indicator zeroes, verifying fixture dimensions, and calibrating measuring instruments. The 0.10005-inch size is commonly used to introduce a fractional-inch increment when building up a stack.

Key Features

• Grade 0 accuracy — tighter tolerances than Grade 1 or Grade 2 blocks, suitable for calibration and inspection use
• Steel construction provides durability and resistance to wear during repeated wringing and handling
• Square geometry allows easy identification and handling in a gage block set
• 0.10005-inch nominal size provides a precise fractional increment for stack building
• Lapped mating surfaces allow blocks to wring together without fasteners for composite dimension buildup

Compatibility

Designed as a standard individual gage block compatible with any Grade 0 square steel gage block set using the inch measurement system. Can be wrung with other steel gage blocks of matching surface finish grade.

Installation Notes

Gage blocks are handled by metrology technicians and quality assurance personnel following standard calibration and measurement procedures. Clean mating surfaces thoroughly before wringing to remove oils, dust, and debris that could affect accuracy or scratch the lapped faces. Store blocks in a protective case away from humidity and temperature extremes to prevent corrosion and dimensional drift. Do not drop or impact blocks, as this can alter the precision geometry of the lapped surfaces.