Technical data: Shape: T1 Diameter: 200 mm Thickness: 20 mm Bore diameter: 32 mm Grain: A - white Grain thickness: 60 Hardness: K Ceramic grinding wheel 99A - Noble fused corundum. It is characterized by the highest chemical purity and contains the fewest admixtures in the form of other oxides. Of the electrocorundum group, it is the most cleavable and brittle. It has very sharp, jagged cutting edges. It has high cutting capacity. Due to its sharpness and brittleness, it is used in the production of abrasive tools intended for precision machining of hard steels, wherever the ground object should not heat up and burn, where we want the so-called ''cool grinding'' Grinding wheels are manufactured from two types of ceramic bonds, VT5 with a brick-red color, and VO8 with a white color. The functional properties of both types of tools are very similar Typical application examples: - precision grinding and sharpening of tools. - grinding of surfaces, holes and shafts. - grinding of threads and gears ** The photo is for illustrative purposes only.