This Dewalt twin pack includes a DeWalt DCD999H2T 18v XR FlexVolt Advantage Hammer Drill with 2x 5ah Powerstack batteries in a tstak, this now has been paired with a Dewalt 18v XR DCG405N-XJ Grinder. The Dewalt DCD999NT Hammer Drill Driver is part of the Dewalt FLEXVOLT ADVANTAGE range, featuring an upgraded brushless motor and electronic module designed to deliver maximum power when used with XR FLEXVOLT 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 battery pack and draws more current from Flexvolt packs to deliver more power 3 speed all metal gearbox designed to withstand the increased torque generated from the improved motor Extended handle with metal collar to manage the increased torque levels 3 Position LED torch, High/Medium/Low settings with High output 20min LED delay lighting up your work