Premium quality, fibreglass reinforced grinding discs for general masonry use. Manufactured in compliance with EN12413 with three fibreglass reinforcements. Produced with high grade, highly refined silicon carbide grit. Bonded with high quality 'bakelite' resin. For use on hand-held angle grinders. For grinding most masonry materials, such as concrete and stone. Also suitable for grinding many non-ferrous metals including copper, brass and aluminium. Sold in Box Quantities of 25.