3M UTILITY CLOTH ROLL, 1-1/2″ W X 50 YD, ALUMINUM OXIDE, P400 GRIT THE DESIRED LENGTH OF THE STRIP CAN BE TORN FROM THE ROLL FOR A SPECIFIC APPLICATION. MOST GRADES HAVE A LIGHT, J-WEIGHT CLOTH BACKING THAT PROVIDES THE FLEXIBILITY NEEDED TO CONFORM TO CIRCULAR EDGES, ANGLES, OR OTHER CONTOURS. ROLLS IN GRADES P50 OR P60 HAVE A SLIGHTLY STIFFER X-WEIGHT BACKING SUITABLE FOR MORE COARSE SANDING APPLICATIONS. CLOTH REMAINS DURABLE EVEN WHEN BENT OR ROLLED, WITHOUT TEARING OR SHELLING, BUT STRIPS CAN BE TORN BY HAND WHEN A SMALLER PIECE IS NEEDED, WITHOUT COMPROMISING THE SANDING SURFACE. ALUMINUM OXIDE IS A POPULAR CHOICE AMONG INDUSTRIAL PROFESSIONALS BECAUSE OF ITS FAST CUT-RATE AND LONG LIFE. THIS MINERAL MAKES A TOUGH, DURABLE ABRASIVE THAT SELF-FRACTURES TO EXPOSE FRESH CUTTING EDGES, WHEREAS TRADITIONAL NATURAL ABRASIVES DULL MORE QUICKLY. ALUMINUM OXIDE IS SUITABLE FOR A WIDE VARIETY OF MATERIALS IN BOTH WOODWORKING AND METALWORKING, INCLUDING FERROUS ALLOYS. ALUMINUM OXIDE ABRASIVE CAN BE USED ON FERROUS AND NON-FERROUS METALS, WOOD, AND PLASTIC. APPLICATIONS ARE BLENDING, CLEANING, CONTOUR FINISHING, DEBURRING, RUST REMOVAL. INDUSTRIES INCLUDE METALWORKING, MRO.