This Bosch D-handle Bulldog� hammer consistently outperforms the best-selling 1 In. corded 11255VSR Bulldog�, making it better than the best. The GBH18V-26DK24 18V EC Brushless 1 In. SDS-plus� Bulldog� Rotary Hammer Kit features a hammer that delivers 1.9 Ft.-Lbs. of impact energy, based on the industry standard of measurement agreed upon by the European Power Tool Association (EPTA). It weighs only 5.8 Lbs. (tool only, not including battery), delivering superior performance and an outstanding impact-to-weight ratio. The kit features two CORE18V Performance Batteries, which deliver 2X the power and runtime as two-layer 4.0 Ah batteries with minimal increase in volume and weight. They are engineered with 21700 cell technology. Bosch engineered the exclusive CoolPack 2.0 technology to manage the heat of the higher power-density cells. The hammer�s EC Brushless motor maximizes battery runtime for extended performance. The tool features a jobsite-proven D-handle design with soft-grip and is ideal for overhead, horizontal and downward drilling applications. It also has KickBack Control and a variable-speed reversing trigger for accurate bit starting.