The DeWalt DC925B is an 18V Cordless Hammerdrill/Drill/Driver Tool Only. It has DeWalt built high power, high efficiency motor which delivers 510 unit watts out of power for maximum performance in all drilling and fastening applications. Its XRP extended run-time batteries provide long run-time & battery life (Batteries not Included). Patented 3-speed all-metal transmission matches the speed to the application for optimal performance. Heavy-duty 1/2 inch self-tightening chuck tightens throughout operation providing superior bit gripping torque. It has superior ergonomics optimize balance, size and weight.