For the most difficult ceramic materials, RUBI offers the EXTREME range of scoring wheels and rollers.
EXTREME scoring wheels and rollers are made of high quality tungsten carbide, with a special titanium carbide coating. Thanks to this coating, RUBI EXTREME rollers and scoring wheels suffer less wear during use. But in addition, the EXTREME scoring wheels and rollers when mounted on a bearing, completely eliminates the friction of the wheel itself with the wheel shaft. This combination allows the behavior of the EXTREME scoring wheel to be much superior to the rest, offering a soft scratch and a life of 300%, compared to SILVER scoring wheels and rollers under the same conditions of use.
The EXTREME range of rollers are specially designed and recommended for scratching ceramic materials with rough and or structured finishes (textures or reliefs).