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The VALUE COLLECTION 630-21496 is a rectangular steel gage block measuring 0.149 inches, manufactured to Grade 0 accuracy standards. Gage blocks are precision measurement references used to calibrate measurement tools, set comparators, and verify dimensional tolerances on machined components. This block includes NIST certification, confirming that its dimensions have been verified against national measurement standards. It is a single-piece block intended for high-precision metrology work in machine shops, quality control labs, and tool rooms. Grade 0 designation indicates a tight tolerance class suitable for inspection and calibration applications where measurement accuracy is critical.
This gage block is suited for use in manufacturing and inspection environments where traceable dimensional verification is required. Typical applications include setting dial indicators and comparators, verifying part dimensions against tolerance specifications, and calibrating measuring instruments. The included NIST certification makes it appropriate for use in quality systems that require documented measurement traceability, including ISO-compliant inspection departments and precision machining operations.
Designed as an OEM-style precision reference block compatible with standard gage block sets and accessories used in general metrology and dimensional inspection applications.
Gage blocks are handled by metrology technicians, quality inspectors, and precision machinists. Before use, clean contact surfaces with an appropriate gage block cleaning solution to remove oils and debris that can affect accuracy. Store the block in its case away from temperature extremes, as thermal variation can affect dimensional readings. Do not drop or strike the block, as this can alter its calibrated dimensions and render the NIST certification invalid.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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