The DeWalt D25263K 1-1/8" SDS+ Rotary Hammer Kit is a light weight, low vibration, high-performance drill designed for demands of todays contractor. The durable German engineered mechanism delivers 3.0 joules of impact energy that delivers up to 15% faster speed of application that professionals demand. The Active Vibration Control® technology employed delivers reduced user vibration for less user fatigue and greater productivity.