Double-sided turning insert with a hard submicron grain size substrate with PVD coating and a special SUMOTEC surface treatment. Suitable for machining steel, alloy steel, austenitic stainless steel, high temperature alloys and hard steel at moderate to relatively high cutting speeds under stable conditions. Features high wear resistance and plastic deformation durability. Insert with first choice for machining stainless and low carbon steel. Positive rake angle, low cutting forces, providing very reliable performance and excellent tool life.