The DEWALT DW505 ½″ VSR Dual-Range Hammer Drill features a 7.8 A motor, variable-speed trigger, and a keyed ½″ (13 mm) chuck. With dual-speed gearing (0-1100 / 0-2700 rpm) and dual‐mode hammer/drill function, it handles wood, steel or masonry applications with ease. Includes 360° side handle, depth rod and chuck key.