Turning insert with a hard submicron grain size substrate with a PVD coating and special SUMOTEC surface treatment. Excellent for machining high temperature alloys and Titanium alloys, at moderate to relatively high cutting speeds. Features high wear resistance and plastic deformation durability. Insert for semi-finishing and finish turning. Chip breaking in moderate feed range. Positive rake, low cutting forces. Used for a wide range of materials including soft and exotic alloys.