3/4" COMPOSITE AIR IMPACT WRENCH (TWIN HAMMER) BOLT CAP.:3/4";AIR CONS.35 SCFM/90PSI(4.9CFM) FREE SPPED: 8,500 RPM; WORK TORQUE:0~650 ft-lb(5sec.) MAX. TORQUE:820ft-lb/15 sec. WEIGHT:2.3KG