Maintains shape & will not rust. Will not shed bristles under normal conditions. Abrasive grit is impregnated throughout each bristle. Safer to use, will not puncture skin. Applications: Removing paints, corrosion, weld scale, surface rust & burns from metals. Prepare plastic, fiberglass, & rubber surfaces for adhesives. Preparing metal surfaces for primers & amp; paint. Cleaning unfinished tile, stone, cement, and brick mortar. Removing old paint and finishes from wood. Cleaning & Sanding wood turnings, railings, banisters, trim & molding. Rounding and blending edges, cutouts and joinings. 1/4" Shank. Carded. 2-1/2" diameter.