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.

3M 05519, Sanding Block, Rubber, 2-3/4 in x 5 in, 7000000587
Dynabrade 93094 3" Dia. x 60 Grit Premium Ceramic Non-Vacuum DynaCut, Locking-Type Disc, 3 Ply Cloth, 25/pack
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
Standard Abrasives 724276, Buff and Blend Circle Buff GP, 2 in x 2 Ply x 8-32 A MED, 7010330371
Norton 66261014921 - 2" X 1/8" 50 - 80 Grit Coarse Grade Aluminum Oxide Bear-Tex Speed-Lok Rapid Blend Gray TR Non-Woven Unified Wheel, 60 Each
3M 19769, Utility Cloth Sheet 314D, 9 in x 11 in P150 J-weight, 7000000357 
