Ideal as gages, pins, punches and special boring tools. Hardened and ground high speed steel, jobber length. Tolerance sizes: up to 1/4 inch (+.0000/-.0005); 17/64-25/64 inch (+.0000/-.0009); and 13/32-1/2 inch (+.0000/-.0010).
Warning:This product may expose you to chemicals including Cobalt, a chemical known to the State of California to cause Cancer. For more information go to www.P65Warnings.ca.gov