Dewalt d25902k sds max demolition hammers 10kg 1550w 110240v dewalt d25902k gb this 240v demolition hammer from dewalt is a superb addition to any tradesmans toolbox as the large oversize hammer mechanism delivers extreme durability and excellent concrete breaking performance equipped with a powerful and durable 1 550w motor delivering outstanding concrete breaking performance plus an active vibration control system incorporating a counterbalance mass and floating handle delivering