• Niigata Seiki steel reference ring gauges
 • REFERENCE STEEL RING GAUGE
 • Steel reference ring gauges can be used for the calibration of measuring instruments such as internal diameter micrometers, air measuring devices, dial indicators, and hole indicators.
 • At the same time; It can be used as a setting ring gauge in checking and adjusting rigid and adjustable reamers.
 • It has high abrasion resistance.