Hammer Drill, 16 mm (5/8″), 500 W Variable Speed Reversing Hammer Dril with Keyed Chuck. High performance and durability at less expense. Powerful 500 W motor with 0-3,200 RPM & 0-48,000 BPM for the most demanding applications. In-line positive grip design maximises power thrust. Recessed lock-on button for continuous use. Reversing switch is conveniently located. 360° swivel side handle. Variable speed control. dial enables user to match the speed to the application. 2-mode operation for “Rotation Only” or “Hammering with Rotation” for multiple applications. Double insulated.