Introducing the latest addition to Ryobi's cordless range: the 4V USB Rotary Tool, designed for engraving, polishing, sculpting, and more! With no need for a power socket, this cordless tool is perfect for hobbyists and DIYers. It offers a range of 5,000-25,000 RPM, providing users with the power to cut, grind, and sand most materials with ease. The variable speed dial allows for precise speed adjustment to suit different applications, and the lightweight design makes it easy to use in confined workspaces. The innovative Quick-Change 3.2mm Collet makes switching accessories twice as fast, simplifying the process of changing attachments. The tool comes with a 15-piece accessory set, including attachments for cutting, sharpening, grinding, engraving, sanding, and polishing various materials.This rotary tool runs on a 4V 2.0Ah battery, which is included in the starter kit along with a charging cable. The Ryobi RRT4-120GA15 can sand pine for up to 20 minutes on a single charge.