5-Speed Adjustable Settings: The mini rotary tool is equipped with a 5-speed model, you can freely adjust the speed of 3000rpm, 6000rpm, 9000rpm, 12000rpm, 15000rpm, which makes it easier to adjust to the right speed to meet the power needs of different DIY jobs. It allows you to grind safely and carefully in stages. Even people without any experience can easily get started and control the speed easilyUSB Rechargeable: The cordless rotary tool has a built-in 2000mAh lithium battery, which contains an ECP protector, so the electric grinder will stop charging after it is fully charged to protect the battery. It can be used multiple times on a single charge. Allows the machine to drill, polish, carve, clean, grind, cut, manicure, etc. directlySmall and Lightweight: Small and light but powerful, use it like holding a pen for ultimate control and precision and comfort, the mini rotary tool is a versatile tool, more suitable for DIY work crafts and other small projects, do not use the mini grinder tool for large or heavy projectsDesigned with light: The mini electric grinder has a newly designed light that illuminates your workspace, you can use it even in dark places, you can see more clearly and work more comfortably