The De Walt D25133K SDS-Plus Hammer Drill is ideal for drilling anchors & fixing holes into concrete & masonry from 4 to 26 mm in diameter, thanks to the mechanical clutch which eliminates sudden high-torque reaction should the bit jam & the electronic variable speed for total control in any application. This Hammer Drill also benefits from an ergonomic rubber coated back handle design for enhanced comfort in use & the rounded ergonomic industrial design allows easy & comfortable handling in any application.