Impact wrench&air impact wrench&air tool&pneumatic wrench&professional impact wrench&air wrench 1/2twin hammer Certificate: CE ISO9000/2000 Free speed(r/m): 7000 Max. Torque: 750n. M Tightening the standard bolt capacity: 18mm General: 190mm Air inlet: 1/4 inch Package: Color box Delivery time: 20~30days. Set accessories: 1PC Mini Oiler 1PC Air Nipple 1PC 4mm hex key wrench Socket size: 9, 10, 11, 13, 14, 17, 19, 22, 24, 27mm.