General Purpose Single Row Knot Wire Cup Brushes deliver fast cleaning of large surfaces. FOR SMALL ANGLE GRINDERS. High-impact action. Provides fast cutting and maximum cleaning action in severe applications. Heat-treated steel wire provides maximum fatigue resistance, long life and aggressive cutting action. A permanently fastened nut in a hexagonal hole clinched in place allows quick mount. Solid ring construction; perfect balance. Applications: Heavy-duty cleaning of large metal surfaces. Cleaning prior to welding. Weld scale and corrosion removal. Rust and paint removal. Roughening Surfaces. Deburring. Sold: 1 Each.