Description Aluminum Oxide Abrasive High quality Aluminum Oxide Abrasive is our toughest media, used for fast removal of heavy oxidation burrs. Various grits are used to prepare numerous surfaces. Part: 405 Coarse 60 Grit Available in 10, 25, or 50 lbs. options Part: 447-4 Medium 80 Grit Available in 10, 25, or 50 lbs. options Part: 444 Fine 120 Grit Available in 10, 25, or 50 lbs. options Part: 446 Extra Extra Fine 220 Grit Available in 10, 25, or 50 lbs. options