The Makita 43 lb. Demolition Hammer (HM1502) has a powerful 15 AMP motor that delivers 36.2 ft.lb. of impact energy to handle demanding concrete applications. The in-line body design is better adapted for working in narrow spaces and provides improved balance for maneuverability. The Soft Start feature suppresses start-up reaction for smoother starts and better accuracy. The demolition hammer has dust extraction capability with the optional dust extraction kit (sold separately). The hex-style chuck accepts 1-1/18 in. steel bits.