Cup Brushes
Clean, deburr, and polish flat or curved parts and surfaces with cup brushes. They're typically used to remove rust, paint, and scale from huge surfaces. The bristles are held in a ring by the cup-shaped base, which provides a large area of surface contact. Cup brushes can be rotated using an angle grinder, die grinder, drill, or other power instrument. Knot wire cup brushes are used for hard cleaning and deburring, while crimped wire cup brushes are used for mild cleaning and polishing.