The DEWALT D25810K 12 lb (5.6 kg) SDS MAX Chipping Hammer features a durable and hard hitting German engineered mechanism that delivers 7.1 joules of impact energy for fast drilling, even in the hardest concrete. With constant speed under load electronics, the Optimized Mechanism and Motor system provides fast chiseling work on concrete and masonry walls, removing plaster and tiles, chiseling breaches and penetrations for pipes in walls and floors, concrete repair work. Constant speed control allows tool to maintain BPM regardless of hardness of concrete and increased speed of application. At only 12 lbs., this SDS max demolition hammer is an ultra light high-performance chipping hammer powered by 10.5 amp motor. Specifications: Amps: 10.5 amps, Vibration Measurement: 8.4 m/s², No Load Speed: 3,150 bpm, Rocker switch, Corded. Includes: 1) D25810 Chipping Hammer, 1) Carrying case.