Heavy duty aluminium oxide resin-backed fibre discs. Round bore. For use with hand-held angle grinders supported by an appropriate backing pad. Use for grinding, finishing, stock removal and weld dressing. Suitable for use on steel, cast iron, alloys and wood. Heavy duty aluminium oxide resin-backed fibre discs. Round bore. For use with hand-held angle grinders supported by an appropriate backing pad. Use for grinding, finishing, stock removal and weld dressing. Suitable for use on steel, cast iron, alloys and wood.