Ideal for surface preparation. Removing paint, debris & corrosion. Cleaning, finishing metalwork etc.Includes: 6x 50mm diameter & 6x 100mm flat type crimped wire brushes. 6x 50mm & 6x 76mm cup style wire brushes.Maximum speed; 4500rpm.Manufactured from copper plated steel wire, with a 6mm shank.Suitable for use with electric & cordless drills. Always wear safety goggles.