These ring gages are perfect for use as masters for bore gages and internal micrometers. Use Vermont Gage ring gages to efficiently inspect external dimensions of manufactured parts. With a Go and NoGo ring, an inspector can quickly pass/fail parts without taking time consuming readings from an indicator. These ring gages are also perfect for use as masters for bore gages and internal micrometers. By using a same size master ring gage, you eliminate lead error when making measurements. A certificate of accuracy accompanies every ring gage assuring size.

Vermont Gage Plain Ring Gage, Measuring System: Metric, 12.533 mm, 1-3/8 in Outside Dia, 3/4 in Thickness, Class Z +/-0.00254 mm, Cold Stabilized Tool Steel, 60/62 HRc