The De Walt D25323K is a heavy-Duty 3 mode SDS combination hammer drill, ideal for drilling holes & fixing anchors into concrete & masonry from 4 to 26 mm in diameter. It has the Active Vibration Control system with floating handle which delivers extremely low vibration & more comfort. The rotation-stop function is suitable for light chiselling applications in soft masonry & occasionally concrete & impact-stop for drilling in wood, steel & screw-driving applications. The large 22 mm hammer mechanism delivers high performance with low stress to the critical components & the electronic variable speed for total control in any application. Mechanical clutch reduces sudden high-torque reaction should the bit jam.