Resin-bonded glass fibre reinforced aluminium oxide metal grinding discs for grinding ferrous and non-ferrous metals. Suitable for metal-grinding applications (not suitable for aluminium or brass). Compatible with 22.23mm bore angle grinders. Manufactured to EN12413 and MPA approved. Max 13,300rpm. Resin-bonded glass fibre reinforced aluminium oxide metal grinding discs for grinding ferrous and non-ferrous metals. Suitable for metal-grinding applications (not suitable for aluminium or brass). Compatible with 22.23mm bore angle grinders. Manufactured to EN12413 and MPA approved. Max 13,300rpm.