Heavy duty zirconium cloth bonded to fibreglass backing disc. Long-life self-renewing design lasts up to 28 times longer than fibre discs. For use with hand-held angle grinders. Used for grinding, finishing, stock removal and weld dressing. Suitable for use on steel, cast iron, stainless steel and alloys. Heavy duty zirconium cloth bonded to fibreglass backing disc. Long-life self-renewing design lasts up to 28 times longer than fibre discs. For use with hand-held angle grinders. Used for grinding, finishing, stock removal and weld dressing. Suitable for use on steel, cast iron, stainless steel and alloys.