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Sumitomo Electric Carbide’s AC420K insert is a CVD-coated carbide grade that features layers of TiCN and Al2O3 for wear, chipping and heat resistance. The coating is designed to improve tool life. ISO classified as a K20 grade, the insert is designed for cast iron roughing applications involving medium to heavy interruptions. The flat surface of the Super FF coating also improves chip adhesion resistance.
Editor PickHitting the Coolant Sweet Spot
Toolholders with integrated cutting fluid delivery channels offer threaded, fixed-position nozzles that direct parallel streams of coolant to pre-defined positions at the top of the cutting tool.