UNOAIR I-8080L ( 8" anvil) heavy duty Impact Wrench ( Rocking dog) Torque : 1600 Ft-Lb Specification Model : I-8080L Square Drive in : 1 Bold Size Capacity in : 1-] mm : 41 Free Speed rpm : 3500 Max Torque ft-lb : 1600 n-m : 2170 Overall Length in : 20-7 8 mm : 530 Net Weight lbs : 24.25 kgs : 11 Air Inlet ( in) : Air Hose ( in) : Avg.Air Consumption cfm : 20 m / min : 0.57