1/2″ drive air impact Gun / Wrench Manufactured to a very high standard and so are built to last and are robust enough for daily use in commercial garages. The mini design allows better access and makes the tool a lot easier to work with. 1/2″ square drive so will fit any 1/2″ drive sockets (impact or chrome vanadium). Trigger operation for variable speed operation. Reversible so makes the impact wrench suitable for tightening and loosening sockets Variable speed so ideal for intricate work if needs be. Specifications Free speed of 6800 RPM Maximum torque 850Nm / 590 Ft./lbs Air inlet 1/4″ BSP (standard air line fitting) Minimum hose size 8mm 1/2″ square drive so will fit any 1/2″ drive sockets (shallow and deep / chrome and impact) Air pressure 68 (kg/cm2).