Description
17 HOLE REFERENCE STANDARD 4130/4340 Carbon Steel, 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2, 9/16, 5/8, 11/16 and 3/4 diameters. Includes 15 Thru EDM Notches .040″ +/- 10% x .005″ +/- .001″ Wide. Includes Test Report …