Integrated damper spring at the base of the impact bolt is engineered to absorb impact vibrations from the drill bit.Vibration absorbing housing features a spring loaded main handle and upper housing that move independently of the motor and drive mechanism effectively isolating most of the vibration away from the user both at the rear handle and side handle.Air actuated counterbalance directs air pressure from the crank and barrel room into the counterbalance cylinders to move counterweight pistons in the opposite direction of the drive piston actively reducing vibration.Anti-Vibration Technology (AVT) is a synchronized, three-component system that more effectively reduces vibration resulting in a low 9 m/s².Powerful 1,510 W motor delivers 20 J of impact energy to handle the most demanding applications.An added feature is the option of lock-on or trigger-activated in the “chipping only” mode, with a push button start/stop control for more convenient operation. The powerful 15 AMP motor delivers 14 ft. The result of the enhanced AVT® is a category-leading vibration rating of 9m/s². It is engineered with enhanced Anti-Vibration Technology (AVT®), a synchronized three-component system for significantly less vibration. The 2” AVT® Rotary Hammer (model HR5212C) has over 45% less vibration than the previous model. It is ideal for a range of trades including masons, concrete contractors, demolition contractors, plumbers, electricians, sprinkler installers, and general contractors seeking a best-in-class rotary hammer. The HR5212C is engineered for a range of concrete applications including drilling/coring through-holes for pipes, setting larger anchors, securing tilt-wall supports, small chipping applications, and more.

20 lbs makita hammer drill and core bit