For an increase in torque, long design. Acc. to DIN 3122, ISO 3315. With recessed lever change. Push-button release. Return angle 7.5 degrees. Non-slip 2-component handle with hanging hole. Locks in the middle position: When the lever is flipped, it automatically engages for clockwise or anti-clockwise operation. For hand-operated sockets and accessories with square drive as per DIN 3120 � C 12.5, ISO 1174, ball locking device. Gedore vanadium steel 31CrV3, chrome-plated.