Craftsman 7-piece Universal Ratcheting Wrench Set Standard Craftsman 7-piece standard wrench sets include sizes: 5/16, 3/8, 7/16, 1/2 , 9/16, 5/8, 11/16 in. Combination black oxide and precision ground finish for rust protection and smooth movements Universal box end fits on 4, 6, 12 point, spline, external Torx and even rounded fasteners Ratcheting box end action delivers continuous fastener contact while reducing slip Tough alloyed steel construction is built to last