Abrasives are materials used for grinding, polishing, cutting, or finishing surfaces by removing unwanted layers. Available in different forms like discs, belts, and wheels, they consist of hard substances such as aluminum oxide, silicon carbide, and diamond. Essential in metalworking, woodworking, and construction, abrasives smooth rough edges, refine surfaces, and shape materials to achieve desired finishes. They range in grit sizes for various levels of precision, from heavy material removal to fine polishing. Proper abrasive selection enhances efficiency and quality, enabling workers to complete projects with a professional touch.