Ceramic Sintered diamond burs (KERAMOS V-II) are very soft bonded diamond tools, designated to grind very abrasive and hard materials. These tools have an extreme aggressive grinding power and do not heat up. No water or other cooling is needed. They are very convenient for working on zircon, AlO2 and other abrasive materials, but also ceramics. A very large range of different shapes helps to fulfill all kind of works. The diamond grit size is: fine / medium-fine.