DLC has excellent hardness and lubricity. DLC is a very popular coating for machining aluminum, graphite, composites and carbon fiber. In aluminum this coating is ideal for high production light finishing applications such as finish profiling and circle milling where holding a size and finish is critical. DLC is not ideal for slotting or heavy milling due to its lower working temperature compared to ZrN. Under proper conditions tool life is 4-10 times greater than ZrN coated tooling. DLC has a hardness of 80 (GPA) and coefficient of friction .1 Outstanding performance in Aluminum and Brass alloys 38 deg helix end mill for soft flute entry and great chip removal Special "3rd land edge prep" increases sharpness and cutting Extra deep gullet Durable, dedicated to aluminum Tungsten steel single edge copy milling cutter 1.Tungsten steel material is not easy to break the knife High hardness, high wear resistance, sharp and not easy to break the cutter 2.Large capacity chip flute Smooth cutting, no burr, good chip removal, higher working efficiency 3.DLC coating Stable chemical properties, high temperature resistance and corrosion resistance Reduce tool changes and improve efficiency 4.Double land design Effectively improve the anti-seismic effect more wear-resistant 5.Universal Round Shank Chamfer Design Fastening without slipping, easy installation and disassembly, and higher work efficiency