18 mm Mozart Blades 90180.051 Ultimate TiN Coated Extra Sharp Extra Hardened Snap-Off Spare Blades exhibit the highest level of performance with its superior features. The TiN (Titanium Nitride) coated blade reduces the coefficient of friction and provides a smooth cut. At the same time, it supports the blade's sharpness and maintains it for a more extended time. That enables much smoother cutting with a single segment, significantly reducing waste from spare blades and saving labour.