Technical Data:
Series: 186
Range: 1 - 7 mm
Accuracy: +/-0.002 in
Radius size stamped on each gage
Concave and convex radius gages form a pair
Locking clamp

Content:
34 pairs: 1 - 3 mm by 0.25 mm; 3.5 - 7 mm by 0.5 mm

Remark:
180 deg arc