A flap disc is an abrasive tool used for grinding, blending, and finishing metal and other materials. The "Ultra Touch" designation suggests a high-quality or premium variant, typically designed for smoother operation, longer lifespan, and possibly enhanced comfort during use. These discs consist of overlapping flaps of abrasive cloth attached to a central hub. As the disc rotates, the flaps provide a continuous abrasive surface that wears down gradually, offering a more consistent finish compared to traditional grinding wheels. Flap discs are commonly used in metalworking for tasks such as weld removal, edge grinding, and surface finishing.
