"The Klutch Air Impact Wrench delivers the power, performance and torque to tackle just about any jobs you come across. Twin hammer clutch mechanism and tough, lightweight composite housing for top performance and ease of use on the job. Cold forged striking hammer increases torque output and extends tool's life. Case Included No, Standard Bolt Capacity in. 3/8, Min. Hose Size in. 3/8, Tool Length in. 6 1/5, Inlet Size in. 1/4, Reversible Yes, Speed - No Load RPM 9,000, Working Torque ft.-lb. 70-270, Tool Weight lbs. 2.7, CFM at Load 3.10, Noise Level dB 87, Variable Speed 3 Forward, 1 Reverse, Hammer Mechanism Twin, Drive in. 3/8, Average Air Consumption CFM 2.93, Max. Torque ft.-lbs. 320. Composite housing for light weight and strength Twin hammer clutch 9000 RPM free speed Produces 320 ft.-lbs. max. torque Cold forged striking hammer increases torque and extends tool life 2.93 CFM average air consumption Forward/reverse power regulator 87dB noise level 1/4' inlet 3/8' hose"