The DEWALT DW4925B 4-Inch by 5/8-Inch-11 HP .020 Carbon Stringer Wire Wheel is constructed of high tensile, heat treated carbon wire which provides long lasting agressive brushing action. It features internal holding plate construction that provides reduced knot movement and increased control and brush life. Commonly used for Metal deburring, Weld cleaning, Surface preparation, Edge blending, and Rust removal.