1/2" IMPACT WRENCH Aluminum hammer casing for greater durability and protection.. Convenient forward/reverse switch for quick directional changes.. Adjustable throttle settings for maximum control.. Twin hammer and anvil constructed of special tungsten and titanium alloy to provide greater service life.. Specifications: Square Drive: 1/2” Max. Torque (ft/lbs) - Reverse: 550 Working Torque (ft/lbs) - Reverse: 25-550 Free Speed (RPM): 7,000 Avg. Air Consumption (cfm): 8 Overall Length: 5” Min. Hose Size: 3/8 Air Inlet (NPT): 1/4 Sound Pressure (dBA): 90 Product Weight: 5.5 lbs 7660