3M Utility cloth sheet 211K works well for multiple metalworking applications on both ferrous and non-ferrous metals: deburring operations by hand or by machine, cleaning metals prior to welding, removing rust and other contaminants, blending and repairing metal finishes fine sanding and polishing applications and surface preparation for paints and coatings. The cloth backing provides the flexibility needed to sand circular edges or small pieces, without tearing as easily as paper or losing grit from folding or bending. On the other hand, the cloth can be torn by hand when a smaller piece is needed. - 3M Utility cloth sheet 211K provides a lightweight cloth sandpaper used for hand sanding. This closed coat product uses aluminum oxide mineral in its construction. These rolls come in a range of grades for common applications such as repairing (metal finishes, rust or other contaminant removal), deburring, blending and surface preparation for paints and coatings.