Ball nearing mounted providing a soft scratch and a life of 300%, compared to SILVER scoring wheels. Titanium surface treatment extends life of this scoring wheel. Made of Tungsten carbide with a superficial Titanium treatment. Shaft made with a patented geometry for maximum precision and minimum vibration. Suitable for all surfaces for sharp scoring in hard ceramics with rough or structured surfaces, For the TZ, and TX-max tile cutters, High resistance to wear, 22mm (7/8?) scoring wheel