The superior mechanics and internal mechanisms of the AirCat air ratchet includes high-quality bearing surfaces, air chambers and turbines. The patented exhaust muffler/filter technology reduces the level of noise while retaining more power and torque. A quiet, powerful tool ideal for shop or home applications. Noise Level dB 82, Case Included No, Drive in. 3/8, Operating PSI 90, Speed - No Load RPM 180, Variable Speed Yes, Average Air Consumption CFM 3.5, Reversible Yes, Tool Weight lbs. 2.88, Max. Torque ft.-lbs. 90, Inlet Size in. 1/4.