A dual-action polisher is a versatile tool used for automotive detailing and surface polishing. It combines rotary and orbital movements, allowing it to effectively remove imperfections like scratches and swirl marks while minimizing the risk of damaging the paint. This makes it suitable for both beginners and experienced users. These polishers typically use foam or wool pads along with polishing compounds to achieve a high-gloss finish. They are popular among car enthusiasts and professionals alike, as they can be used on various surfaces, including car paint, gel coat, and clear coat.