Brand Name: Forney *Diameter: 4 in. *Wire Type: Crimped *Product Type: Wire Wheel Brush *Material: Metal *Maximum Speed: 6000 rpm *Number in Package: 1 pc. *Shank Diameter: 1/4 in. *Usage: Removes rust, scale and paint *Removes rust, scaleand paint in hard to reach areas. *  *  * Wire Size: .012 *Discovery Regional