... 15- 80mm, thicknss: 10-50mmSpecificationssuper hard diamond and cbn sanding products 1,for glass, stones,steel,etc 2,professional manufacturer ... abrasive belts, block, discs, pads, bands) are made with our new production technologue. Made with diamond or CBN, and some other bond materials, resin bond ... little dust and noise when working. KMJ-2708 diamond abrasive flap wheel for grinding and polishing