Description
12 Hole Calibration Standard, 27 Total EDM Notches. Hole Sizes; 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8 and 3/4 inch diameters. ( .030 x .030 and .020 x .020 ± .002″ Corner EDM Notches in each Hole. 3 surface EDM Notches .008”,.0…

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