Ceramic Sintered Diamond Burs (KERAMOS V-II) are very soft diamond tools, protocols for grinding very abrasive and hard materials. These tools have extremely aggressive grinding power and do not heat up. It does not need water or any other type of reduction. They are very convenient for working in a circle, AlO2 and other abrasive materials, but also in ceramics. A wide range of different shapes helps to do all kinds of jobs. The diamond grit size is: fine / medium-fine.