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 PickCoroMill 390 Silent Tools Bring Security to Titanium Pocket Machining
The CoroMill 390 Silent Tools can be ordered in diameters from 20 to 32 mm. It is available for both the new insert size 07, as well as insert size 11, with options for either cylindrical shank or Coromant Capto coupling.