Norton Metalite R228 Small Diameter Abrasive Cloth Disc, Cotton Backing, Pressure Sensitive Adhesive, Aluminum Oxide, 5" Diameter, Grit 50 (Pack of 25)

Norton Metalite R228 durable, small-diameter, cotton backed discs are suitable for portable applications, on contours or flat surfaces, for light-to-medium pressure grinding to blend, level, and finish metal and wood. These discs have no center hole for full-face usage. Pressure-sensitive adhesive sticks when pressure is applied, without messing with solvents, water, or heat.Coated abrasives have individual abrasive grains spaced at a predetermined distance from one another. This is a closed-coat disc. 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. The cloth backing is stiffer, tougher, and thicker than a paper or film backing. Cloth resists tearing while bending and flexing during use. Use with molded rubber back-up pads, using a hard pad for aggressive cutting, a medium pad for general purpose applications, or a soft pad for contours and fine finishing work.Aluminum oxide is a widely used and versatile abrasive material. It is a tough, fracture- and wear-resistant grit that works well with a broad range of materials, from metals to wood. Aluminum oxide is more durable than silicon carbide and often used for material removal and finishing.Abrasives are used for a variety of applications from shaping a part to fine finishing, depending on the grit size. Low grit numbers like 40 are coarse and are used for removing excess material and shaping a part. High grit numbers like 400 are fine and help to create a smooth surface finish. Abrasives, because they use many small cutting particles, provide more controlled material removal and better surface finish than cutting tools like end mills and saws, but do not operate as quickly.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. 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.

• Aluminum oxide is durable and the most common abrasive grain
• Heavy cotton backing is resistant to heat, durable, and flexible, for use on contours or flat surfaces
• Pressure-sensitive adhesive sticks without messing with solvents, water, or heat
• Small diameter for use with portable die grinders to blend, level, and finish many different materials
• This disc is used with a molded rubber back-up pad (sold separately)