The Mitutoyo 186-902 Radius Gauge has the following technical specifications:
Range: 0.5 - 13mm by 0.5mm
Accuracy: +/- 0.05mm
Composition of Leaves: 26 Leaves
Remarks: 90 degree arc
Features:
Radius size is stamped on each gauge
Both concave and convex radius gauges become a pair
With a locking clamp