The Senco 14V Duraspin Cordless Collated Screwdriver (DS202-14V) (3P0001N) is designed for various screw fastening applications with 1 to 2 inch screws. It features a powerful 2,300 RPM motor and a reverse switcch to back out driven screws when needed. This driver features easy depth of drive adjustment for regulating the precise amount of countersink and a patented clutch design for longer tool life. Included with this driver is a back up battery and a one-hour charger.