General description This coarse cup brush is designed for use with wood, metal, and non-ferrous metals. It features abrasive nylon bristles that effectively sand and structure surfaces, making it an ideal tool for various DIY and home improvement projects. Technical specifications Diameter: 75 mm Abrasive material: Nylon with aluminum oxide grains Shank type: E6 hexagonal shank Compatible with drills with a 6 mm chuck