1"AIR IMPACT WRENCH TWIN HAMMER STD.BOLT CAP.:1-3/4"(45MM); SQ.DRIVE:1"; WORKING TORQUE:500~2000ft-lb(678~2711 Nm) MAX.TORQUE:2200ft-lb(2983 Nm) FREE SPEED:6000 RPM;AIR INLET:1/2";AIR CONS.:13.4cfm MIN.HOSE SIZE:3/4"(19MM);AIR PRESSURE:90 PSI(6.2 BAR) LENGTH:249MM;WEIGHT:7.57KGS **6 POSITION POWER REGULATOR FOR THE DESIRED TORQUE **3 POSITION POWER REGULATOR FOR EACH FORWARD/REVERSE **HANDLE EXHAUST **PATENT HAMMER MECHANISM:HERMETICALLY SEALED WITH LUBRICATING OIL, IMPROVING THE PROBLEM OF TWIN HAMMER WITH POOR LUBRICATION AND EXTEND ITS LIFESPAN. ** IT IS SUITABLE FOR WORKING IN THE NARROW CHASSIS OF THE HEAVY TRUCK AND EASILY TO DISASSEMBLING AND LOCKING THE FLAKE LEAF SPRING