Socket to Drill Adapter for Impact Drivers, Turns Power Drill Into High Speed Nut Driver. 3-piece socket to power drill adapter, 1/4" hex to 1/4" 3/8" 1/2" impact driver adapter, hex shank bit driver extension bar set, used in electric/ manual screwdriver, drill and other installation for the hexagonal tool. Made from heat-treated hardened Chrome Vanadium (Cr-V) Steel to ensure a long lifetime through tough torque jobs without breaking. Heavy duty construction to be compatible with powerful impact tools.