Widia Inserts Grades and Grade Descriptions Widia Coatings provide high-speed capability and are engineered for finishing to heavy roughing wear re

Widia Inserts Grades and Grade Descriptions Widia Coatings provide high-speed capability and are engineered for finishing to heavy roughing. wear resistance M t°ughness Coating Grade Description 05 10' 15 20 25 30 35 40 45 S z i A Uncoated carbide. Extraordinarily good balance of hardness, wear resistance, edge stability, and toughness. Light and medium machining. For cast iron, all non-ferrous metals, and non-metals. Useful in unfavourable conditions. VJ K N S HW-K15 H s 1 1 Uncoated carbide. Medium machining. For steel. P VJ M HW-P25 CC 1 1 A Uncoated carbide. Light and medium machining. For steel. To be used at low cutting speeds. Effective in unfavourable conditions. P \J HW-P35 P i / Cermet. Light machining. Extremely good wear resistance at higher cutting speeds. For steels and nodular cast iron. Recommended for high cutting speeds under favourable conditions. P VJ M K z 15 a h H