... : 10-50mmSpecificationssuper hard diamond and cbn sanding products 1,for glass, stones,steel,etc 2,professional manufacturer 3,more economicThe ... belts, block, discs, pads, bands) are made with our new production technologue. Made with diamond or CBN, and some other ... , longer working time, little dust and noise when working. high quality diamond and CBN abrasive flap wheel for grinding and polishing