Double-sided turning insert with a very tough substrate with MTCVD coating with a special SUMOTEC surface treatment. Recommended for machining stainless steel at moderate cutting speeds and medium to high feeds. Features very high toughness with excellent results in heavy machining operations, unstable conditions and interrupted cut. Insert for first choice for machining stainless and low carbon steel. Positive rake angle, low cutting forces, providing very reliable performance and excellent tool life.