Tough on concrete, not on you. Makita's hard-hitting HM1810X3 70-Pound. Breaker Hammer is equipped with Anti-Vibration Technology (AVT), an exclusive counterbalance system that reduces vibration. The result is more efficient hitting on the concrete and less vibration in the tool and the tool user, 15 AMP Power The HM1810X3 with AVT is engineered to be the most efficient breaker hammer in its class with a 15 AMP motor that provides 1,110 BPM and 63 joules of impact energy with less vibration. In addition, it has an automatic brush cut-off system that protects the commutator, and a warning indicator lamp for longer tool life.