The Mitutoyo 186-107 Radius Gauge has the following technical specifications:
Range: 15.5 - 20mm by 0.5mm, 21-25mm by 1mm
Accuracy: +/- 0.05mm
Composition of Leaves: 30 Leaves
Remarks: 180° arc
Features:
Radius size is stamped on each gauge leaf
Each leaf comprises an internal and an external radius gauge of the same size
With a locking clamp