Wire Cup Brush

A wire cup brush is a power tool attachment with wires in a cup shape, used with angle grinders or drills for heavy-duty surface preparation tasks like removing rust, paint, scale, and corrosion from metal surfaces. They come with either crimped or knotted wires, with crimped being for lighter duty jobs and knotted for heavy material removal. The wires, typically steel, are arranged to provide a coarse or fine finish, depending on thickness and the desired result