Industrial Rotary Brassed Crimped Wire Wheel Circular Brush, 6mm shaft mounted arbor style for use in drill chucks, air tool collets, and flexible drives. Brass coated steel is more flexible and not so brittle as standard steel so giving a longer life. Ideal for cleaning and removing Rust, Paint and Tarnish from metal surfaces. 100mm diameter 6mm 1/4” Shaft 0.3mm wire diameter 4500 max rpm