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17-688-3 SPI Setting Ring Gage 7.50

17-688-3 SPI Setting Ring Gage 7.50"

$ 1,682.04$ 1,345.63

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Product Description

Master Setting Ring

For comparative gaging, calibration and the setting of internal measuring tools.

Specifications include...

  • 7.50" Size
  • + 0.00019" Accuracy

Features include...

  • Made from oil hardened non-shrinking steel
  • Hardened and tempered to 62 RC
  • Actual dimensions duly etched
  • Includes Short Form Certificate of Calibration