SENCO 3P0001R DS202-14V, Cordless 14.4V Duraspin Collated Screwdriver (Certified Refurbished) 2,300 RPM high-torque motor Slide out 14.4 Volt battery provides the optimum balance of power weight and run-time across the full range of crews Easy depth-of-drive adjustment regulates the precise amount of countersink Reverse switch to back out driven screws Patented clutch design means long-lasting durability