DEWALT | Corded SDS Plus Combination Rotary Hammer 22mm | D25032K-B5APPLICATIONS Drilling holes in solid masonry Ideal for drilling anchor and fixing holes into concrete and masonry from 4 to 22 mm in diameter Impact stop for drilling in wood; steel; ceramic and screwdriving applications Large hammer mechanism delivers high performance with low stress to the critical components resulting in better durability Mechanical clutch eliminates sudden high torque reaction should the bit jam Electronic variable speed for total