This 20-Volt MAX XR Cordless Brushless Rotary Hammer is a high-performance masonry drill that is powered by a DEWALT brushless motor and a powerful hammer mechanism delivering 3.5 joules of impact energy. with its balanced design and extreme runtime, this hammer is built for all day use and large diameter hole drilling, even in the hardest concrete. SHOCKS Active Vibration Control System defends the user against exposure to prolonged vibration, reducing vibration felt at the handles. Our patented E-Clutch system provides enhanced control to the user in a bind up and can help minimize sudden torque reaction compared to standard clutches. The onboard dust extractor features a powerful fan assembly for efficient dust collection during high-performance drilling. Drill holes up to 1 in. Dia, to depths up to 8 in. Install large diameter sleeve, stud/wedge, and screw anchors. This unit includes an OSHA 1926.1153-compliant Dust Box Assembly. Equipped with a filter cleaning mechanism and a HEPA filter, it removes 99.97% of airborne particles 0.3 mic or greater.