All-Purpose to Meet Your Needs URCERI rotary tool kit with 100 parts accessories (including HSS drill, grinding head, polishing felt, and more), it meets all your working demand under any task. Thanks to all accessories, you can work on large and heavy iron casting task in a factory. Or you can even focus on small tasks like crafting in your studio. Moreover, our rotary tool can grip accessories tightly with spindle lock design, which simplify the process of installing and uninstalling. Our rotary tool kit aims to meet all your task demands. Adjustable Speed and Thermal Design Our rotary equipment is designed with a 6-speed transmission, which allows you to adjust quicker and slower the rotate speed according to your preference. Such design makes our product more capable with meticulous tasks, such as elegant crafting work and more. Moreover, the thermal design ensures itself longer serving time, this design protects the battery perfectly from overheating. You don't need to worry the battery will be damaged. Convenience for any Craftsmen Our cordless rotary tool set is light-weighted, it is capable to craft works for craft lovers. Your wrist will not be fatigue during long-time and meticulous tasks. In addition, the flex shaft offers you a greater working condition, it reduces the overall weight that you should hold. With this flex shaft, you can pay more attention to your meticulous works.