Makita HM1810 Breaker Hammer with AVT Powerful 15.0 AMP motor delivers 1,100 BPM to handle the most demanding applications Anti-Vibration Technology is an internal counterbalance system that greatly reduces vibration and directs more impact energy to the work surface for increased user comfort and greater productivity L.E.D. power light indicates switch failure or cord damage Makita Motor Advantage engineered with field core interlocking steel laminations, dual ball bearing armature and more copper commutator bars, increasing energy transfer efficiency for more power and longer tool life Automatic brush cut-off protects commutator from damage for longer tool life Lowest noise level in its class at only 107dB AC/DC switch for use with alternative power source Large, easy-to-operate switch for operator comfort and control 16.4 ft. jobsite cord for greater versatility and instant power Cylindrical tool holder enables new bolt holes to be drilled should the original bolts break Accepts 1-1/8"" Hex Shank bits Hex Wrench (783203-8) Model HM1810X3 Includes a Hammer Cart (122010-A) and 4 Bits Counterbalance system reduces vibration to only 8 m/s 2 for unmatched comfort Powerful 15 AMP motor; 120V ; efficient 1,100BPM to tackle the most demanding jobs. Lowest Noise Level in its class at only 107dB Accepts popular 1-1/8" hex hammer steel Automatic Brush Cut-Out system protects Commutator for Longer Tool Life.