Screw Gun Power Source Corded Torque Range 344 in-lb Max Torque 344 in-lb Free Speed 1 000 RPM Drive Size 1/4 in Screwdriver Type Metal Fastening Screw Gun Chuck Size 1/4 in Clutch Type Auto Adjustable Reversible Yes Variable Speed Yes Current 6.5 A Application Deck/Subfloor Installation Drywall Self Drilling Fasteners In Steel Voltage 120V AC Handle Type Pistol Grip Throttle Type Trigger Tool Weight 3.7 lb Overall Length 12 in