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 25208 Housing Ass'y for Model 52639
Dynabrade 78672 5/8" Dia. x 1-1/2" W x 1/8" Center Hole, Tapered Cartridge Rolls, A/O, 120 Grit, 100/pack
Dynabrade 31968 Conductive Y Adapter
Dynabrade X51S 5" Dia. Non-Vacuum Dynorbital_ Extreme Random Orbital Sander, PSA W/ Speed Regulator
Dynabrade 52675 1 hp Straight-Line 6" (152 mm) Extension Die Grinder, Rear Exhaust, 9,000 RPM, 1/4" Collet
Dynabrade 82564 1/4" W x 18" L 120 Grit Ceramic DynaCut Belt, 50/pack 
