Maxcraft 60259 1/4-Inch Drive Adjustable Socket/Bit Driver 6-Position Adjustable Shaft Extends 5-Inch in 1-Inch Increments Professional Grade Chrome Vanadium Steel Construction Cushioned Non-Slip Grip Delivers Extra Torque by Reducing Hand Fatigue 1/4-Inch Drive Tang can be Used with Sockets and Bit Sockets Spring-Loaded Ball Bearing Locks on to Sockets