All metal nitro-carburized chuck prolongs life as it is stronger and rust-resistant Hammer Function increases speed to 2250rpm giving an increased productivity 3-speed gearbox for a greater range of applications The most powerful 18v drill DeWalt have ever made 18v improved brushless motor, electronics and components for extended durability, efficiency and power Delivers 112 Nm and 1219 W (using 6Ah) Up to 42% more power when used with an XR FLEXVOLT battery compared to standard 18v packs 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 Features and benefits: Brushless motor The most powerful 18V drill Dewalt has ever made 18V XR / FlexVolt battery compatible 3 speed metal gearbox Improved 3-speed transmission offers the user the correct speed for the application