The 1-9/16 in. AVT rotary hammer (model HR4013C) has 45% less vibration and 20% more impact energy than the previous model. It is engineered with enhanced anti-vibration technology (AVT), a synchronized three-component system for significantly less vibration. The result of the enhanced AVT is a category-leading vibration rating of 5 m/s. The powerful 11 AMP motor delivers 11.4 joules (8.4 ft. lbs.) of impact energy, 20% more than the previous model for faster drilling. 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 HR4013C 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. 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.