Drop-forged chrome vanadium steel for extra strength. 10 SAE sizes 3/8in., 7/16in., 1/2in., 9/16in., 5/8in., 3/4in., 13/16in., 7/8in., 15/16in. and 1in. 12 Metric sizes 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 and 19mm. Raised panel finish. In a roll-up p
