High-efficiency motor. This upgradeable rotary tool offers more power and generates less heat during operation thanks to its powerful motor compared to conventional rotary tools. With a no-load speed of up to 28,000 RPM, this rotary tool provides better performance for DIY projects. Pen-like grip. It is slimmer and lighter than ever before, fitting comfortably in your hand like a pen. Thanks to its ergonomic design, the Worx rotary tool is not only easier to grip and hold but also more comfortable to use for extended periods. Universal accessories. Compatible with 3.2 mm standard rotary tools from all major brands. If you need replacements, you can contact your local retailer or a hobby store. This kit comes with a 23-piece accessory set so you can get started right away. Variable speed control. With its 5-speed design, the no-load speed of this rotary tool can be adjusted from 5,000 to 28,000 RPM, making it perfect for various applications such as engraving metal, cutting off protruding bolts, grinding rust off iron rods before painting, sanding children's toys, polishing a brass plaque while still attached, and more. Special feature: includes a case, includes a charging cable.