The Makita 11 lb. Demolition Hammer has more power with 8.4 ft.lb. of impact energy, yet weighs only 11.1 lbs. The HM0870C (accepts SDS-MAX bits) has constant speed control that automatically applies additional power to the motor to maintain speed under load. The 12 bit angle settings allows the bit to be set a different positions for operator comfort. The Makita HM0870C Demolition Hammer is ideal for horizontal work.