Surface Strip Depressed Center Wheels. Applications: An open web construction allows cleaning and conditioning of a multitude of materials quickly and easily, with very little loading. Excellent for removal of surface rust and residue, corrosion, light weld splatter, dirt, mill scale and other similar surface contaminants. Major applications include: Cleaning and conditioning after welding. Preparing surfaces before welding. Painting and epoxy coating removal. Surface preparation before coatings are applied.