3M Green Corps fiber disc is designed for grinding door skins, MIG welds and other applications on metal, plastic or fiberglass. Offering an exceptionally fast cut and extreme durability – the right tool to complete the job. 3M Green Corps Fibre Disc are designed to hold up to a heavy workload and are ideally suited for such applications as grinding door skins, coating removal, paint removal, gasket removal, rust and weld removal, general metal work and clear coat applications on metal, plastic or fiberglass. These performance grinding discs are easily changeable with a rub and retainer nut design onto an appropriate grinding tool.