Sanding tasks are among the most frequent uses of abrasive discs. These discs remove paint, burrs, and other flaws from surfaces made of metal, porcelain, glass, plastic, and other materials. Popular abrasives like aluminum oxide are regarded for their durability, strength, and affordability to kinds of abrasives. It is in many grinding and sanding applications because of its low heat retention and low specific heat. Corundum, a mineral that naturally contains aluminum oxide, is only utilized as a component of emery and is not used as a commercial abrasive. It generates an abrasive appropriate for finishing tasks when mixed with emery or crocus. Key Features: Abrasive discs have a long lifespan on stainless steel, aluminum, wood, and fiberglass. The pull tab on PS33 PSA sticky back paper discs makes it simple to remove the backing while wearing gloves. One box contains 100 Discs.