Description
14 HOLE CALIBRATION STANDARD. Material: 4330 Steel. Hole Sizes: 5/32, 3/16, 13/64, 7/32, 15/64, 1/4, 17/64, 9/32, 19/64, 5/16, 21/64, 11/32, 3/8, 1/2. EDM Flaws: .020″ x .020″ x .005″ +/- .001″ and .030″ x .030″ x .005″ Wide +/- .001″ corner notches. …