Impact 6-point hex sockets specifically forged for use on powered impact tools. Precision cold-forged, hardened and tempered chrome vanadium steel. Clear, laser-etched sizes and industrial phosphate-coated for tough corrosion resistance. Thick walls provide strength and durability for repetitive high torques. Side wall hole for ball or pin locking to the tool. Impact 6-point hex sockets specifically forged for use on powered impact tools. Precision cold-forged, hardened and tempered chrome vanadium steel. Clear, laser-etched sizes and industrial phosphate-coated for tough corrosion resistance. Thick walls provide strength and durability for repetitive high torques. Side wall hole for ball or pin locking to the tool.