The D25810K 12 lb. SDS Max Demolition Hammer is an ultra light high-performance chipping hammer powered by 10.5 amp motor. The dependable and hard hitting German engineered mechanism, delivers 7.1 joules of impact energy. With constant speed under load electronics, the D25810K is ideally suited for all day work on concrete and masonry walls, floor and wall channeling, and removing plaster and tile from floors, walls and ceilings. The active vibration control technology employed delivers reduced user vibration for less user fatigue and greater productivity.