... 15- 80mm, thicknss: 10-50mmSpecificationssuper hard diamond and cbn sanding products 1,for glass, stones,steel,etc 2,professional manufacturer 3 ... can work in dry or wet environment ,The most important preponderance of the diamond and cbn products is high ... finshing, longer working time, little dust and noise when working. high quality diamond and CBN abrasive flap wheel for grinding and polishing