Makita HM1512 45 lb. AVT® Demolition Hammer, accepts 1‘1/8" Hex bitsMakita HM1512 The Makita 45 lb. Demolition Hammer (HM1512) has a powerful 15 AMP motor that delivers 35. 7 ft. lb. of impact energy to handle demanding concrete applications. This demolition hammer features Anti Vibration Technology (AVT), an internal counterbalance system along with vibration absorbing handles that work together to reduce vibration. The in line body design is better adapted for working in narrow spaces and provides improved balance