UNOAIR I-45 ( ½ " ) Impact Wrench ( Jumbo Hammer) Torque : 200 Ft-Lb Specification Model : I-35 Square Drive in : ½ Bold Size Capacity in : 15/ 32 mm : 12 Free Speed rpm : 10000 Max Torque ft-lb : 200 n-m : 271 Overall Length in : 5-½ mm : 140 Net Weight lbs : 2.98 kgs : 1.35 Air Inlet ( in) : ¼ Air Hose ( in) : Avg.Air Consumption cfm : 3 m³ / min : 0.08