Clarkson-Osborn gages are made of tool steel hardened to Rockwell C 60-62 and then go through a cryogenic treatment process to ensure their stabililty
Go and NoGo thread gages are used in manufacturing applications to provide the user with a quick and accurate method of inspecting and verifying that their threaded product meets the required specification
Metric thread gages are also available in standard 6H and 6G tolerance