This set includes wire brush for 4-1/2" angle grinders heads of different sizes. It includes 10 wire brushes of 4 different types: 3*75 mm knotted wire cup brush, 3*75 mm crimped wire cup brush, 2*100 mm crimped wire wheel brush, and 2*100 mm knotted wire wheel brush. The wire wheel for angle grinder is made of high-strength carbon steel bristles and stainless steel. The brush head is made of high-strength hardened materials. The maximum speed is 12,500 RPM. These wire brushes would not easily fall apart or be abraded. The rotary wire brush for angle grinder set is very easy to install and use. install the lever on the angle grinder, then install the wire brush, then tighten the lever and tighten the wire brush.Simplify maintenance and repair tasks, saving time and effort. Wire wheel brush are very suitable for removing rust, deburring, cleaning, polishing, and general treatment of materials such as metal, steel, aluminum, wood, and wooden materials. Application scenarios include: home, garden, metal processing, woodworking, industrial maintenance, and home DIY. Before using the metal wire brush drill attachment, please wear personal , including goggles, gloves, long sleeves, long pants, etc. After installation, let the tool run idle for 1 minute to check if it is working properly before use. Color: As Shown Material: Carbon Steel Wire Package Contents: 10*pcs wire wheel for drill Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.