The Makita HM1810X3 70 lbs is a Breaker Hammer with Free Bits and Cart. The powerful 15 Amp motor provides 1100 BPM to tackle the most demanding jobs. It produces the lowest noise level at 107 dB. It accepts popular 1-1/8 inch hex hammer steel. The automatic brush cut-out system protects commutator for longer tool life. It has a 16.4 ft. jobsite cord for greater versatility and instant power. The Cylindrical tool holder enables new bolt holes to be drilled should the original bolts break. The hammer also features a warning lamp indicates trouble with the cord and a AC/DC switch for use with alternative power sources. It has a large, easy to operate switch for operator comfort and control.