Cost-Effectiveness: It is generally less expensive than most of the other abrasive grains, especially like ceramic alumina. Aluminum oxide abrasive material has many advantages over other abrasives including: : Aluminum oxide is a tough material that resists wearing down. Abrasives made from aluminum oxide often last longer than those made from softer materials. Versatility: One of aluminum oxide's biggest advantages is its versatility. It can be used on a variety of surfaces, from metals to woods, and for different processes including grinding, deburring, and finishing. Performance: Known for its nature, aluminum oxide maintains a longer than many other abrasive materials., Weight: 1.28309036484 pounds, Manufacturer: Gishbjka