Special for rough or extruded ceramics. Tungsten Carbide scoring wheel of high resistance and duration. Tungsten Carbide Caster with Surface Titanium Treatment Handle made with a patented geometry for a maximum precision and minimum vibration. Patented geometry handle for maximum accuracy and minimum vibration. Incorporates bearings, eliminating shaft wear and thus extending cutting life. Longer duration. Easy to use Can cut Tiles and Glass Very affordable