Ingersoll has upgraded its existing TT81Series turning grades for high-speed and high-feed applications in steel. These turning grades feature the latest CVD coating features, brand new surface treatment and coating combination for superior anti-chipping. They ensure excellent wear resistance due to the stable alumina coating layer and offer more consistent performance and up to 80% longer tool life. These grades offera minimized chemical reaction between the coating surface and the workpiece during machining as well as stable machining performance under heavy interrupted machining conditions. The two-tone insert color promotes easy detection of worn edges.