Feature: 1. Advanced Drill Driver: non-slip and adjustable speed impact drill for comfortable and easy operation with no-load speed of 3000rpm. Speed setting knob and variable speed trigger allow you to control drilling speed at 0-3000 RPM according to your requirements. 2. Hammer & Impact Drill Dual Mode: with a dual mode selector, just switch it to easily convert hammer and drilling function depending on your tasks, suitable for installing chandelier, TV and furniture, drilling on wall, door and window. 3. Special Products Advantages: with lock button to enable you to lock the speed without a constant grip on the trigger to reduce fatigue. Adjustable and detachable side handle for easy and convenient operation. Locking button on handle can fix the speed to free your hand. 4. Convenient Function Design: the 850W pure copper motor that generates 30% more power provides added durability and overload production for drilling and chipping on wood, masonry, steel, wall, concrete and other hard materials. 5. Easy and Safe Control Switch: forward and reverse switch with automatic spindle lock for safe use, meeting your different needs for screwing tasks. Push the forward & reverse switch at the middle position of handle, it will lock the screwdriver for safety. Specification: Package List: 1 * 850W Hammer Drill 1 * Side Handle 1 * Lock Key