This product is a Hammer Drill (Hilti Drill) Power and effort: 1200 watts, operating at an electric voltage of 220-240 volts. Chuck size: 26 mm. Features: 360-degree rotating handle, continuous operation lock button, and a switch to change functions. Accessories: Comes with 4 drill bits and a sturdy plastic bag. Speed: Up to 1300 RPM. Warning: Please wear appropriate personal protective equipment when using power tools to avoid injuries.