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17-690-9 SPI Setting Ring Gage 9.50"

17-690-9 SPI Setting Ring Gage 9.50"

  • Save $ 560

Master Setting Ring

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

Specifications include...

  • 9.50" Size
  • + 0.00023" 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