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The VALUE COLLECTION 630-73556 is a square steel gage block sized at 0.55 inches, manufactured to Grade 0 accuracy standards. Gage blocks are precision reference tools used to calibrate measuring instruments, set comparators, and verify dimensional tolerances in machining and inspection environments. This block carries NIST certification, confirming traceability to national measurement standards. Grade 0 designation indicates a high level of dimensional accuracy, making it suitable for calibration lab use and precision inspection work. Machinists, quality control technicians, and metrologists rely on certified gage blocks to maintain measurement integrity across production and inspection processes.
This gage block is appropriate for use in tool rooms, metrology labs, and quality inspection departments in manufacturing environments. It serves as a reference standard when calibrating micrometers, height gages, dial indicators, and other precision measuring instruments. The 0.55-inch size fits within standard gage block set configurations and can be wrung together with compatible blocks to build up composite measurements. Both light industrial and precision manufacturing shops use individual gage blocks like this one for day-to-day calibration and setup tasks.
Designed as an individual replacement or supplemental gage block for use in standard steel gage block sets and precision measurement setups requiring a 0.55-inch Grade 0 reference standard.
Gage blocks are precision instruments and should be handled by qualified metrology or quality control personnel. Store blocks in a protective case away from temperature extremes, humidity, and contaminants that can affect dimensional accuracy. Clean contact surfaces with an appropriate gage block cleaning solution before wringing. Do not drop or stack gage blocks on hard surfaces, as surface damage will compromise accuracy and void certification.
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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