A rotary tool is a versatile handheld device used for various tasks, including cutting, grinding, sanding, and polishing. It operates with a high-speed rotating bit or attachment, allowing users to perform intricate work on materials like wood, metal, and plastic. Commonly used in DIY projects, crafts, and professional applications, rotary tools can be equipped with different accessories to suit specific needs. These tools are often powered by electricity or batteries, making them portable and easy to use. Popular brands, such as Dremel, offer a range of rotary tools with varying speeds and features, catering to both beginners and experienced users.