This RIDGID X4 18-Volt Hammer Drill/Driver Kit comes with a FREE 18-Volt 4.0-Amp Hour Battery. This compact and light weight hammer drill has 650 in-lbs of torque to power through the most demanding applications. The new X4 Hammer Drill is loaded with features such as exclusive Grip Light Technology which engages LED Light by simply holding the tool and innovative Hex Grip for maximum comfort and a secure grip. Powered by Hyper Lithium, an innovative battery technology built for high performance this Hammer Drill has best-in-class run time, best-in-class recharges and best-in-class extreme weather performance. All these features are backed by the Ridgid Lifetime Service Agreement. Free Batteries. Free Parts. Free service. For Life.