The Hilti TE 70 Concrete Rotary Hammer has incredible power and speed while maintaining Maximum protection and comfort. With a powerful 1800 Watt motor, the TE 70-AVR Combination Rotary Hammer performance Kit makes hammer drilling, coring and chiseling through concrete seem easy. This best-in-class Rotary has been upgraded with Active Vibration Reduction (AVR). Hammer drilling in concrete, masonry and natural stone using bits in the 1/2" - 6" diameter range. The Active Torque Control (ATC) feature reduces the possibility of twisting should the drill bit catch in rebar or other material.