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 54762, SandBlaster Quick Change Hub for Right Angle Grinder 9675, 4.5 in, 7010301728
Air Turbine Tools 2545DM - 6mm Angle Hand Tool Series (Long Version, Front Exhaust), 40,000RPM, 35545
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
ACS Flap Disc, Type 29 (Curved) Full Diamond 4-1/2 X 5/8-11 60M, 333.FD4.5-60/T29
3M 45711, Cubitron II Hookit Cloth Disc 947A, 40+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113118
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
3M 05009, Utility Cloth Roll 211K, 100 J-weight, 1 in x 50 yd, Full-flex, 7100016843 
