CGW 4 1/2 in (OD) Regular 27 Depressed Center AO Flap Disc 40 (Medium) 5/8-11 inches Arbor 421-39412

CGW Abrasive Flap Disc active grinding agent provides cool cutting. CGW 4 1/2" Regular 27 Depressed center AO flap disc offers high stock removal and extended service life. Disc having an arbor size of 5/8-11" and grit size of 40 is tough and aggressive for a low noise, no vibration action. Grit/Grade: 40 (medium). Diameter: 4 1/2-inch. Thickness: Regular. Backing material: Polyester. Abrasive material: Blue fired A3 alumina. Premium blue fired AO grain with a polyester heat treated backing, recommended for universal use and provides rapid stock removal and extremely long life. Contaminate-free, for working on flat grinding surfaces, most efficient when used between 0°-15° angle, the best choice for smooth finishing. Suitable for: A3 can be used on ferrous metals (alloyed and unalloyed steels, high speed steel, cast iron), stainless steel, non-ferrous metals (aluminum, brass, copper, zinc) as well as on composites, plastics, and soft and hard woods. Used with: Right angle grinder/sander. Sold as 1 Each.