Screwdriver Power Source Corded Brushless Motor No Torque Range 0.9 in-lb to 4.9 in-lb Max Torque 4.9 in-lb Min Torque 0.9 in-lb Free Speed 1 000 RPM Drive Size 1/4 in Screwdriver Type Production Screwdriver Chuck Size 1/4 in Clutch Type Adjustable Torque Hex Bit 1/4 in Reversible Yes Variable Speed Yes Number of Clutch Settings 1 Number of Speed Settings 2 Side to Center 21.5 mm Cord Length 4 ft Plug Type Three-Prong Current 2.5 A Application Assembly Voltage 20/30V DC