3 Review(s)

Combined threading tool gauge for ACME 14-1/2" and angular threads 47-1/2", 55, 60 Degree It is Used For Checking Tool Angles Acme Thread BA Thread. While Machining Threads In Metal Turning Lathes Graduation in both British and Metric System, Metric , American National & Used to check thread angle and pitch of thread cutting tools. / Use to grind and position thread cutting tool on a lathe 55 degree angle, tempered with a satin-chrome finish Extremely handy for use in grinding and setting screw cutting tools / Hardened with lapped edges and notches Very useful for finding number of threads per inch through graduations in 1/14" and 1/20" of an inch on center gauge Ground gauging surfaces. Center gauge with inch graduations