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The VALUE COLLECTION 630-21016 is a rectangular steel gage block ground and lapped to Grade 0 accuracy standards, measuring 0.101 inches in nominal size. Gage blocks at this accuracy grade serve as reference standards for calibrating measuring instruments, setting up comparators, and verifying dimensional tolerances in precision machining and metrology environments. This block includes NIST certification, providing traceable documentation of dimensional accuracy required in regulated inspection and quality control workflows. Machinists, tool-and-die makers, and metrology technicians are the primary users of this type of reference standard.
Grade 0 gage blocks are suited for inspection-room and toolroom applications where a higher level of dimensional accuracy is required than workshop-grade blocks provide. This 0.101-inch block is typically used as a single-size reference or combined with other gage blocks in a wringing stack to achieve a precise target dimension. It fits into standard gage block sets and accessory setups used in dimensional verification across manufacturing and quality assurance operations.
Designed as an OEM-style reference standard compatible with standard rectangular gage block holders, accessories, and wringing sets used in precision metrology and inspection applications.
Gage blocks are handled and stored by metrology technicians and precision machinists following standard dimensional metrology practices. Blocks should be cleaned of oils and debris before wringing or measurement use, and should be stored in a protective case to prevent nicks or corrosion. Do not drop or stack blocks carelessly, as surface damage will compromise accuracy. Temperature stabilization to 68 degrees F (20 degrees C) is standard practice before taking traceable measurements.
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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