Norton Zirconia Alumina Sanding Belts 80 Grit delivers excellent cutting on any surface. They have anti-static and proprietary, patented grain technologies and produce a super-fine scratch pattern and finish. These portable belts are conveniently packaged for protection during transport and easy storage. For high-speed sanding and finishing of flat surfaces on wood, plastic, and fiberglass, grinding and finishing of all metals, blending welds, and abrasive planing of wood.