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The SPI 10-708-6 is a precision setting ring used to calibrate and verify bore gauges, plug gauges, and other internal measuring instruments. It features an inside diameter of 0.175 inches, an outside diameter of 1.26 inches, and a thickness of 0.197 inches. Accuracy is rated at 0.00010 inches with a surface smoothness of 10 micrometers, making it suitable for high-precision metrology applications. This type of ring gauge is handled by quality technicians, toolroom machinists, and metrology professionals who require traceable, repeatable measurement standards in manufacturing and inspection environments.
Setting rings in this size range are commonly used in toolrooms, quality control labs, and production floor inspection stations. They serve as master references for zeroing and verifying internal measuring tools before use. This ring is appropriate for light industrial and precision manufacturing settings where tight bore tolerances must be confirmed and documented. It is packaged individually and sold as a single unit.
Designed as a master reference setting ring for use with bore gauges, air gauges, and plug gauges requiring a 0.175-inch internal diameter calibration standard.
Setting rings are handled by quality control and toolroom personnel and require no mechanical installation. Store in a clean, dry environment away from temperature extremes to maintain dimensional stability. Handle with clean cotton gloves to prevent corrosion from skin contact. Follow your facility calibration procedures and applicable metrology standards when using this ring as a gauge master.
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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