Square drive: 25mm (1 Inch) No-load speed: 3600 rpm Max.torque: 3100Nm (2300ft) Weight: 18.5 Kg With universal connector Air Consumption: 1019l/min (36cfm) Anvil: 200mm (8 Inch) Capacity bolt Size: 45mm (1-3/4 Inch) Air inlet: 1/2 Inch Air hose: 1/2 Inch Packed by BMC