This 73-piece rotary tool set includes a multi-functional DC4V cordless mini power tool with 5 speed settings from 7000 to 20000 Rpm, allowing you to easily choose your ideal speed to meet a variety of needs, from fine polishing to efficient cutting. The set includes all the accessories needed for cutting, grinding, drilling, polishing, carving, sanding, and cleaning. A thoughtful dedicated storage box and carrying case ensure the tools are organized and easy to carry, allowing you to inspire anytime, anywhere. Equipped with a 2000mAh high-capacity battery, it provides up to 150 minutes of continuous use on a single charge, easily handling various challenging projects. A Type-c charging cable makes charging quick and convenient. The wireless design completely eliminates cable constraints, and the lightweight, compact body with a non-slip rubber grip maintains comfort and precision even during extended use, making it a powerful assistant for Diy enthusiasts.