This mini electric engraving pen is a versatile and portable cordless rotary tool designed for DIY enthusiasts, crafters, jewelers, and home users. It features 5 adjustable speed levels to meet different working needs on various materials such as wood, metal, stone, jade, plastic, and glass. The built-in LED light provides clear illumination for detailed engraving, polishing, drilling, and grinding, even in low-light environments. Powered by a USB Type-C rechargeable design, it supports convenient charging via power banks, laptops, and adapters, and can be used while charging to avoid interruptions during long projects. Weighing only 127g with an ergonomic non-slip handle, it is lightweight and comfortable to hold, reducing hand fatigue during extended use. The low-noise operation ensures a quiet working environment without disturbing others. The kit comes with 30 complete accessories including grinding heads, cutting discs, sanding bands, drill bits, and collets, covering most daily crafting and repairing tasks. With a simple spindle lock design, the accessory replacement is quick and tool-free, making it easy for both beginners and experienced users. The compact size and cordless design make it easy to carry and store, ideal for indoor creation, outdoor DIY, model making, jewelry processing, and personalized gift engraving. Whether you are engraving patterns, polishing surfaces, drilling small holes, or repairing crafts, this electric engraving pen delivers stable performance and high precision. It is a practical and essential tool for home DIY, art creation, and daily small repairs.