We have Makita HM1800 64-Pound Breaker Hammer AC/DC with Product Detail Features an innovative pneumatic compression system that automatically adjusts air in the cylinder to minimize power loss Special idling mechanism prevents hammering while idling Hi-impact resistant housing cover insulates heat for more comfortable handling Innovative shock absorbing handle minimizes vibration transmission Automatic brush cut-out system . The "Makita HM1800 64-Pound Breaker Hammer AC/DC" is best product for you. We recommended Makita HM1800 64-Pound Breaker Hammer AC/DC