This gauge from Shinwa is made from hardened and tempered stainless steel and can be used to measure outside radius, outside diameter, sheet thickness and also is a rule. The radius measurements have a range of 8 to 15 mm, 0.5 to 6 mm for diameter, and 0-15cm for the rule.
The accuracy is ±0.1 mm for radius, ±0.05 for diameter and ±0.15 mm for the length measurements on the rule.
Made in Japan.
