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.) 1 Average Air Consumption (CFM) 16.24 CFM at Load 16.24 Speed - No Load (RPM) 4,800 Max. Torque (ft.-lbs.) 1,800 Working Torque (ft.-lb.) 170 - 1650 Inlet Size (in.) 3/8 Min. Hose Size (in.) 1/2 Hammer Mechanism Twin Variable Speed Yes Noise Level (dB) 86 Tool Length (in.) 21 1/4 Tool Weight (lbs.) 18 Additional Product Specs * Lightweight, durable composite body * 6in. anvil * Twin hammer "super clutch" mechanism * D-handle for control and comfort * Easy thumb forward and reverse lever