UNOAIR I-61 ( ¾ " ) Impact Wrench ( Twin Hammer) Torque : 700 Ft-Lb Specification Model : I-61 Square Drive in : ¾ Bold Size Capacity in : 1 mm : 25 Free Speed rpm : 4500 Max Torque ft-lb : 700 n-m : 949 Overall Length in : 9-½ mm : 241 Net Weight lbs : 10.14 kgs : 4.6 Air Inlet ( in) : ¼ Air Hose ( in) : Avg.Air Consumption cfm : 12 m³ / min : 0.34