The PORTER-CABLE 712400605 2-1/2-Inch by 14-Inch Aluminum Oxide 60G Belt (5-Pack) features durable aluminum oxide grain for longer disc life and higher removal rates. It is resin coated to resist heat and humidity for longer life, and the heavy duty x weight cloth resists tearing and stretching. The bi-directional flush joint runs smooth in both directions. Designed for use with portable belt sanders. Commonly used for surface finishing of wood, metal, fiberglass, plastic and painted surfaces.