Optimized for use with 1/2" drive impact wrenches drivers ratchets and adapters. Stamped and ink-filled size markings support easy ID. 6 Point design with forged impact steel construction. Dual hole design groove for easier attachment. Non-slip hex geometry prevents rounding. Laser etched part number meets ASME Industry Standards. Impact resistant case. Includes Metric Standard sockets (mm):. 10 11 12 13 14 15 16 17 18 19 21 22 26 27.
