Description
Contains 12 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.( .030X.030 CORNER NOTCH and 3 SURFACE NOTCHES .010″, .020″, .040″ DEEP x .750″ LONG.) MATERIAL: 4130 or 4340 CARBON STEEL. Includes Certificat…