Featuring Tiger•tec® Silver PVD cutting tool material, WKK25S is suited for machining of cast iron materials. Product provides hardness from 2,200–2,500 Vickers to 2,500–2,800 with minimal number of micro defects in coating surface. WSM45X, with Tiger•tec® Silver CVD and post treatment, excels at machining stainless steel (ISO M) and super alloys (ISO S). WNN15 features High Power Impulse Magnetron Sputtering, which results in very dense smooth coating layers for use with ISO N materials.