Universal Tool's UT8963ATT-11 Air on Top Auto Shut-Off Screwdriver features a Softouch handle grip for ultimate comfort and reduced vibration. Trigger Start. Air on top feature allows for clean vertical suspension without trailing hoses. Adjustable auto shut-off clutch for smooth precision, smooth disengagement and minimum vibration. Also features convenient thumb operated reverse. Precision engineered for ultimate reliability. Through handle exhaust with built-in silencing system and built-in suspension bail. Best for precision high volume assembly. Specifications: Motor 0.50 HP, Torque Range (in. lb.) 5-45, 1100 RPM, Exhaust: handle, 1/4-inch Int. Hex chuck, Rec. Pressure 90 psi-6.2 bar, Air Inlet (NPT) 1/4-Inch, Rec. Hose 3/8-inch (I.D. in), Air Cons 16 CFM, Av. Air Cons 4.0 CFM. The Universal Tool nameplate is a symbol for quality and workmanship with innovative products featuring the latest advances in air tool design. At Universal Tool, performance proven products and people are something you can trust today and tomorrow.