400 grit version of our 1 inch wide sanding roll. 3M™ Utility Cloth 314D uses durable cloth backing, with resin-over-resin construction and high-quality FEPA -graded mineral. Resin-over-resin bond construction provides excellent mineral adhesion, longer useful life. The J-weight backing provides excellent durability, even when rolled, twisted or folded. This effective utility cloth is good for numerous general metalworking applications can be torn by hand easily to achieve a straight, clean edge and avoid a frayed edge that can cause wild scratches. Use for general purpose sanding; cleaning metals prior to welding; blending and repairing metal finishes; fine sanding and polishing applications; removing rust, scale and contaminants; deburring operations by hand or by machine; surface preparation for paints and coatings.