UNOAIR I-62 ( " ) Impact Wrench ( Twin Hammer) Torque : 1100 Ft-Lb Specification Model : I-62 Square Drive in : Bold Size Capacity in : 1-3 16 mm : 30 Free Speed rpm : 5500 Max Torque ft-lb : 1100 n-m : 1492 Overall Length in : 8-43 64 mm : 220 Net Weight lbs : 12.35 kgs : 5.6 Air Inlet ( in) : Air Hose ( in) : Avg.Air Consumption cfm : 10 m / min : 0.28