A rotary tool is a versatile handheld power tool that can be used for various DIY projects. Also known as a rotary tool kit, it comes with various attachments and accessories that allow you to drill, sand, grind, carve, polish, and engrave different materials such as metal, wood, plastic, and glass. Some common synonyms for rotary tools include handheld rotary tool, multi-tool, Dremel tool (named after the brand that popularized it), electric carving knife, and precision rotary tool. These tools are great for creating intricate designs and precise cuts, making them popular among woodworkers, jewelry makers, and hobbyists. They are available in corded and cordless models and are ideal for small-scale projects and repairs.