Norton 69957398007 5 X 7/8 In. Blaze F980 Supersize Ceramic Alumina Fiber Discs, 50 Grit, Coarse

High grit numbers like 400 are fine and help to create a smooth surface finish. This is a closed-coat disc. Use with molded-rubber back-up pads on a grinder. Foam pads come in different combinations of shape and density for finer or more aggressive work. For example, use a low profile for uniform contact with the work surface, a tapered edge for small contours or inside corners, soft density for 320 grit and finer sanding, or medium density for grits coarser than 320. Ceramic aluminum oxide is tougher than aluminum oxide, and is self-sharpening. Resin bonds have good moisture resistance, are harder and less flexible than glue bonds, and have good heat resistance and grain retention. A closed coat covers 100 percent of the surface with abrasive grains, for more stiffness and better surface finish than an equivalent open coat, where abrasive grit covers 50 to 70 percent of the surface. Ceramic aluminum oxide is most commonly used for medium-to-high material removal on metals. Full resin bonding system with heavy-duty fiber backing for increased strength, durability and tear resistance The self-lubricating ”supersize” treatment helps cut cooler and improve workpiece finish, while the ceramic aluminum oxide allows for a faster cut than aluminum oxide. Resin bonds are useful for abrasive operations with high operating speeds, impact, and sudden loading, as the resin bond is strong. Low grit numbers like 40 are coarse and are used for removing excess material and shaping a part. This disc is suitable for use with a die grinder or orbital sander. The Speed-Lok quick-change system allows for easy disc mounting and removal to increase productivity by reducing the time required to change discs. Norton/Saint-Gobain has been recognized as a Global 100 Sustainable Company, as well as earning ISO 9000 and 14001 certification for quality and environmental management standards. Norton Abrasives manufactures a wide variety of sanding, grinding, and polishing abrasives, and has been located in the United States since 1885. In 1990, Saint-Gobain purchased Norton, keeping its manufacturing facilities and offices in the same location. Abrasives are used for a variety of applications from shaping a part to fine finishing, depending on the grit size. Or, with a random orbital sander, use a foam back-up pad to match the application. Norton SG Blaze F980 Abrasive Disc, Fiber Backing, Ceramic Aluminum Oxide, 7/8 Arbor, 4-1/2 Diameter, Grit 50 (Box of 25) Visit the Norton Store 5.0 5.0 out of 5 stars 1 rating The lubricant also helps cut faster for an improved workpiece finish. Norton 69957398007 5 X 7/8 In. Blaze F980 Supersize Ceramic Alumina Fiber Discs, 50 Grit, Coarse Norton R980 SG Blaze ceramic aluminum oxide discs have a flexible 1-ply construction in order to conform to the workpiece.