Anti-wear layer consists of nitrides containing 30-65, preferably 30-60, especially 40-60% Cr, 15-35, preferably 17-25% Ti and 16-40, preferably 16-35, especially 24-35% Al and preferably a small amount of elements for grain refining. Preferred Features: The composition of the whole layer is made from a homogeneous mixed phase or consists of alternating layers of (TixAlyYz)N (where, x = 0.38-0.5, y = 0.48-0.6, and z = 0-0.04) and CrN. The upper most layer of the anti-wear layer is made from CrN.
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