1" DR.AIR IMPACT WRENCH TWIN HAMMER;SIDE EXHAUST FREE SPEED:3,800RPM;AIR INLET: 3/8"or 1/2";WORKING TORQUE: 2200ft-lb(2981n-M);MAX.TORQUE: 2500ft-lb(3388 N-M);ANVIL:6" AIR CONS:60SCFM;BOLT CAP:M39 LENGTH:539MM;WEIGHT:14.97KGS