Hole dia: 20mm
Diamond grit: #100 -#400 available, single side, double side available
Base thickness: 0.6/0.8mm
Diamond coating width: 25mm
Mainly used to polish superhard material, such as sapphire, glass, granite, marble and tile
Diamond Grinding Discs, Diamond Sharpening Stones, Diamond Knife Sharpener manufacturer / supplier in China, offering OEM Diamond File for Ceramic and Metal, Best Price Electroplated Diamond Needle Files for Glass, High Quality Diamond File Set and so on.