Value Collection 630-23656 Steel Gage Block 0.65 in Grade 0

Product Description

The VALUE COLLECTION 630-23656 is a rectangular steel gage block ground and lapped to Grade 0 accuracy tolerances. Gage blocks serve as dimensional reference standards used to calibrate measuring instruments, set comparators, and verify part dimensions on the shop floor or in the metrology lab. This block measures 0.65000 inches and includes NIST certification documentation, confirming that the block has been measured against traceable national standards. Grade 0 designation indicates a high level of dimensional accuracy suitable for inspection and laboratory-grade measurement work. Installation and use require no special tools but do require clean, burr-free contact surfaces and careful wringing technique to achieve reliable stacking.

This gage block is used in precision measurement applications across manufacturing, machining, and quality control environments. It is appropriate for setting dial indicators, height gages, and snap gages, as well as for verifying machine tool setups. The included NIST certification makes it suitable for use in calibration labs and inspection departments where traceability documentation is required. Both toolroom technicians and metrology professionals will find this block applicable to general-purpose dimensional reference tasks.

Key Features

• Grade 0 accuracy for inspection and laboratory-grade dimensional reference
• Nominal size of 0.65000 inches for precise dimensional work
• Steel construction provides durability and resistance to wear over repeated use
• Includes NIST certification for traceable measurement documentation
• Rectangular form compatible with standard gage block sets and accessories

Compatibility

Designed as an OEM-style replacement or supplemental block compatible with standard rectangular gage block sets and accessories used in general precision measurement and calibration applications.

Installation Notes

Gage blocks should be handled by metrology technicians or toolroom personnel familiar with wringing technique and proper block care. Before use, clean all gaging surfaces with an appropriate solvent to remove oils, debris, and burrs that could affect accuracy or damage the lapped surfaces. Store blocks in a protective case away from temperature extremes, as thermal expansion can affect dimensional readings. Periodic recertification against NIST-traceable standards is recommended to maintain measurement integrity over time.