"The AirCat 1150 1/2in. Composite Twin Hammer-Super Clutch Impact Wrench is a powerful impact with killer torque. Pound for pound, it is one of the strongest twin hammer wrenches on the market. Case Included No, Reversible Yes, Max. Reverse Torque ft.-lbs. 1,295, Operating PSI 90-120, Hammer Mechanism Twin, Speed - No Load RPM 9,000, Min. Hose Size in. 1/4, Noise Level dB 85, Tool Length in. 7.5, Standard Bolt Capacity in. 3/4, Average Air Consumption CFM 4, Working Torque ft.-lb. 200-950, Inlet Size in. 1/4, CFM at Load 4.3, Impacts Per Minute IPM 1,400, Forward Torque ft.-lbs. 200-950, Drive in. 1/2, Max. Torque ft.-lbs. 1,295, Variable Speed Yes, Tool Weight lbs. 4.5. 1295 ft.-lbs. max. loosening torque 200-950 ft.-lbs. working torque 9000 RPM free speed 1400 BPM Durable twin hammer mechanism with super clutch Best suited for all-around automotive maintenance Patented AirCat Quiet Technology 85dB Easy Flip lever controls forward/reverse Ergonomic grip handle reduces operator fatigue"