The AirCat impact wrench incorporates a patented exhaust muffler/filter technology and has a substantially reduced level ofnoise while retaining more power and torque. The superior mechanics and internal mechanism of the AirCat includes high-quality bearing surfaces, air chambers and high-speed turbines, with a system that allows exhaust to exit through the handle. The benefits include reduced hazards from breathing exhausted air particulates, the elimination of blow-by into the operator's eyes and lungs as well as reduced noise.Drive 3/4in.Average Air Consumption6CFMSpeed - No Load 4,500RPMMax. Torque 1,400ft.-lbsWorking Torque 2001,200ft.-lbHammer MechanismTwinNoise Level84dBAdditional Product Specs* Twin-hammer clutch mechanism for speed and durability