Particularly for the demanding use experienced in industry and with utility vehicles. Acc. to DIN 3122, ISO 3315. With recessed lever change, locks in middle position. Return angle 11.25 degrees. Push-fit tube handle. For hand-operated sockets and accessories with square drive as per DIN 3120 � D 20, ISO 1174 with locking pin. Gedore vanadium steel 31CrV3, chrome-plated.