This 'next generation' twin-pack combines two fantastic DeWalt power tools with new, more compact battery technology The DCD999 is a powerful brushless Combi Hammer Drill Driver. The DCF850 is a small and powerful impact driver ideal for automotive and industrial applications. It provides 205 Nm of torque in a compact body of just 100 mm. The DCF850 offers users enhanced control with a 3 mode switch, such as Precision Drive which ensures the material and fastener are not damaged during smaller jobs. The incorporated LED light improves visibility in difficult environments. This is a bare tool twin pack - no batteries or chargers supplied. These machines have been designed with Powerstack batteries in mind but are fully compatible with all Dewalt 18v XR Batteries DCD999NT Features The most powerful 18v drill DEWALT have made 18v Improved Brushless Motor, electronics and components for extended durability, efficiency and power delivering 112Nm and 1219w (using 6Ah) Software identifies