1. High Quality ---- Made of high quality brass and stainless steel, corrosion resistant, not easy to rust, long service life, even effect and low cost. 2. Wide Application ---- This wire brush set is suitable for polishing and grinding most ferrous and non-ferrous metals, castings, welded joints, rivets, rust. 3. Main Functions ---- This wire brush set can be used to remove burrs, rust, dust from metal surfaces, remove oxidation, scale and paint from hard-to-reach areas, etc. 4. Suitable for Most Hand Drills ---- This wire brush has a shank diameter of 3 mm and is suitable for most hand drills, sanders and any machine that can be equipped with a shank handle. 5. What you get ---- This wire brush set includes: 12 x 6mm diameter wire brushes (12 x brass brushes, 12 x wire brushes), 12 x 15mm diameter wire brushes (12 x brass brushes, 12 x wire brushes), 12 x 25mm diameter wire brushes (12 x brass brushes, 12 x wire brushes). color: black Material: brass + stainless steel Package