The D25966K2 1-1/8" 41lb demolition hammer delivers a concrete crushing 40 joules of impact energy. The dependable and hard hitting German engineered mechanism, delivers long life. With its all metal housing and barrel, this demo hammer was meant for heavy-duty applications like floor trenching for pipe, breaking out stairs/risers, creating openings into shafts, breaking asphalt, loosening/breaking hard packed dirt/gravel/clay and confined space work when big power is needed. The Active Vibration Control® technology employed delivers reduced user vibration for less user fatigue and greater productivity The DCH966 is equipped with WIRELESS TOOL CONTROL, which allows the user to link the tool to the DCV585 60V MAX dust extractor for remote extractor ativationThis tool comes Tag Ready™, so users and companies can attach the DEWALT Tag™ to track its location virtually anywhere via the DEWALT Tool Connect™ app.