1/2" PRO. COMPOSITE AIR IMPACT WRENCH; TWIN HAMMER; BOLT CAP. :5/8"(16MM);SQUARE DRIVE:1/2" MAX. TORQUE:1015 Nm(750ft-lb);FREE SPEED:7,500 RPM AIR INLET:1/4" NPT(PT); AIR PRESSURE:90 PSI; MINI.HOSE SIZE: 3/8" I.D.AVG. AIR CONS.:4.5 CFM LENGTH:195MM;WEIGHT:1.9KG