The RIDGID 18-Volt X4 Hyper Lithium-Ion Cordless Hammer Drill and Impact Driver Combo has best- in-class torque, features, battery technology and service. The hammer drill’s 4-pole, open frame motor produces 650 in. lbs. and the impact driver’s 1750 in. lbs. of torque for the most demanding applications. With free registration, this tool is covered for life. Free Batteries. Free Parts. Free Service. For Life.