All the power at half the noise! The superior mechanics and internal mechanisms of the AIRCAT® impact wrench 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. Key Product Specs Drive (in.) 3/8 Average Air Consumption (CFM) 4 CFM at Load 4 Speed - No Load (RPM) 10,000 Blows Per Minute (BPM) 1,000 Max. Torque (ft.-lbs.) 400 Working Torque (ft.-lb.) 50 - 350 Inlet Size (in.) 1/4 Min. Hose Size (in.) 3/8 Hammer Mechanism Twin Variable Speed Yes Noise Level (dB) 84 Tool Weight (lbs.) 2.6 Additional Product Specs * 90 PSI air pressure * Twin hammer "super clutch" mechanism * Ergonomically designed handle * Durable composite construction