[ Powerful Motor ]—INGCO high-performance motor provides the drill machine with up to 0-850 RPM no-load speed and 0-5100/min impact rate, making it easy to drill in hard materials such as concrete, allowing you to use it more efficiently.         [ 1 Button 2 Functions ]—This INGCO hammer drilling machine features hammer drilling, drilling functions. Hammer mode for drilling in concrete or stone; Drilling mode for drilling without impact in wood, metal, ceramic and plastic as well as for screw-driving.        [ Drilling Capacity ]—The max drilling diameter for concrete: 16 mm. The SDS-Plus chuck allows for easy and secure bit changes to keep your project going. With integrated LED work light, forward/ reverse function, you can finish your work more conveniently.         [ Ultra Quality 2.0 Ah Battery ]—A large capacity 2.0Ah battery is included to provide longer lasting and better performance.