The Dewalt High Performance 6" Carbon Knot Cup Brush DW4917 is a durable and high-quality tool designed for metalworking tasks. With a 6-inch brush diameter made of carbon steel, this cup brush is ideal for removing rust and paint from various surfaces. The knotted wire design and 5/8" arbor threads make it easy to attach to your drill or sander, providing efficient and effective abrasion. Trust the Dewalt brand for reliable performance and long-lasting durability in your metalworking projects.