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.

Dynabrade 25230 Gear Set- 1.176: 1 Ratio, 1.3Hp
Dynabrade 93637 3" Dia. x 320 Grit A/O Vacuum Hook-Face DynaCut Disc, 50/Pack
Dynabrade 96100 Motor Tune-Up Kit
Dynabrade 79202 1/2" W x 12" L Belt Assortment Pak
Dynabrade 11005 Dynafile Belt Housing Guard
Dynabrade 02089 Drop-In Motor
Dynabrade 50267 4-1/2" Dia. Disc Backing Pad, 5/8"-11 Thread
Dynabrade 91164 3/8" W x 13" L 120 Grit A/O DynaCut Belt, 50/pack
Dynabrade 58418 6" Dia.Two-Hand Dynorbital Random Orbital Sander, Non-Vacuum
Dynabrade 56183 6" Dia. Vacuum Disc Pad, Hook-Face, Short Nap 
