For demanding grinding applications on nonferrous metals, especially difficult-to-grind materials such as aluminium, aluminium bronze, aluminium base alloy, copper, bronze, brass and nickel silver Grit size 40/60 for high stock removal Grit size 80/120 for fine work Specification prevents the usual smearing and dulling of the flap disc Self-cleaning and sharpening of the disc during material abrasion thanks to fed ceramic grain Consistent performance For demanding grinding applications on nonferrous metals, especially difficult-to-grind materials such as aluminium, aluminium bronze, aluminium base alloy, copper, bronze, brass and nickel silver Grit size 40/60 for high stock removal Grit size 80/120 for fine work Specification prevents the usual smearing and dulling of the flap disc Self-cleaning and sharpening of the disc during material abrasion thanks to fed ceramic grain Consistent performance