The DCH481X2 60V MAX Brushless 1-9/16-inch SDS Max Combination Hammer is a lightweight high-performance hammer that is powered by a DEWALT brushless motor and durable German engineered mechanism. The DCH481 delivers 6.1 joules of impact energy for fast drilling, even in the hardest concrete. The lightweight design makes it ideally suited for horizontal serial drilling for #4 - #8 rebar, dry coring and chipping in any mid to upper wall and ceiling application. The patented E-Clutch; system provides enhanced control to the user in a bind up situation and can help minimize sudden torque reaction compared to standard clutches. The Active Vibration Control; technology employed delivers reduced user vibration for less user fatigue and greater productivity. With its balanced design, SHOCKS; Active Vibration Control; technology and Extreme Run Time, this hammer is ideally suited for all day use, even in the hardest concrete. The kit comes with two 60V Max Lithium-Ion batteries and fast charger. The FLEXVOLT 20V/60V MAX* Battery pack changes voltage when you change tools, powering a line of powerful 60V MAX* tools, 120V MAX* tools, and backwards compatible to existing 20V MAX* tools and chargers. The battery pack is smart enough to know when to provide runtime for 20V MAX* tools (9Ah) and power in 60V MAX* and 120V MAX* (3Ah) tools.