Edge Series, 1/2", High Torque, Composite Impact Tool, Twin Hammer Plus Impact Mechanism Delivers 690 FT/LB Of Reverse Torque, 8,200 RPM Free Speed, Produces 1,200 Blow Per Minute In Impact Mode, Quiet Tool Technology Reduces Noise Levels, Powerful 6 Vane Motor, Feather Touch Trigger, 1 Handed Pushbutton Forward/Reverse Makes It Easy To Control In Either Direction, 5 CFM Average Air Consumption, Handle Exhaust Blows Air Away From Your Project, Eliminating The Mess & Increasing Productivity, Lightweight & Durable For Any Job, 1/4" Inlet, 3/8" Minimum Hose Size.