A rotary polisher is a power tool used for polishing and buffing surfaces, primarily in automotive detailing and woodworking. It operates by spinning a polishing pad in a circular motion, which helps to remove imperfections, scratches, and oxidation from surfaces. This tool is effective for achieving a high-gloss finish on materials like paint, metal, and plastic. Rotary polishers come in various sizes and speeds, allowing users to choose the right tool for their specific needs. They are often used in conjunction with polishing compounds and pads, which can be selected based on the type of surface being worked on. Proper technique and safety precautions are essential when using a rotary polisher to avoid damage to the surface or injury to the user.