Features:1. This brush set consists of 24pcs of wire wheel brush, there are 2 types in different diameter.2. Durable in use, terrific polishing effect, high efficiency and low cost.3. Made of high quality steel materials, these brushes are eco-friendly, durable and sturdy to use.4. 6mm shank suitable for most drill or electric grinder.5. This product is ideal for cleaning metallic surface, removing rust and corrosion, etc.Specifications:Material: SteelShank Diameter: 6mm / 0.24inchFlat Brush Diameter: 100mm/ 3.94inch, 50mm / 1.97inchCup Brush Diameter: 50mm / 1.97inch, 75mm / 2.95inchQuantity: 24pcsWeight: Approx. 2058gPackage Included:6pcs x 100mm Flat Wheel Brush6pcs x 50mm Flat Wheel Brush6pcs x 50mm Cup Wheel Brush6pcs x 75mm Cup Wheel BrushNote:1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Only wire wheel brushes, no other stuff included.