Compact Brushless Powerstack Twin Kit DCK2050H2T includes the same G3 Combi and Impact Driver as the DCK2050E2T but with upgraded 5.0ah DCBP518-XJ Powerstack Batteries The DEWALT Powerstack DCBP518 5.0ah 18v Battery utilises pouch cells to give you greater productivity than before. Get 50% more power* enabling faster application speeds and increased productivity with more than 50% more work per charge** using this battery that works with all the 18V XR tools you already have. This DCBP518 battery provides twice the lifetime*** and features an impact-resistant, overmolded base with non-marring material. Powerstack battery technology - the most powerful, compact and lightest weight battery. The next dimension of power is now available in 5.0ah *vs. DEWALT DCB184 battery, not in application **Usable energy vs. DEWALT DCB184 battery, not in application ***Charge cycles vs. DEWALT DCB184 battery. Features of DCD805 Combi Hammer Drill Improved Transmission which Supports the increased power levels Increased power and performance Reduced Length/More Compact, 13mm/6.6% shorter (DCD805vDCD796) which gives enhanced ergonomics More Power, Efficiency and Durability, 80% more power density v DCD796 giving increased power and faster application speed An incredible 90Nm driven through the new/improved transmission. Designed to support the increase in power levels Ergonomic Grip Design which maximises user comfort Enhanced Electronics for improved performance, control and productivity PIVOTING LED which illuminates working areas and dark confined spaces giving improved visibility POWERSTACK Batteries in Kits to deliver and optimize the power and performance of these drills whilst in the most compact form Users Electricians Mechanical Carpentry HVAC Plumber Applications Fixing Boxes/fittings Running Cables Running conduit Cabinet installation Furniture building Timber construction Kitchen fitting Fitting Ducting