... Kennametal, MITSUBISHI, SUMITOMO, Kyocera CERATIP, Tungaloy, OSG, Djijet, NACHI, HITACHI TOOL, BIG, ISCAR,Mo Case Sol, Vargus, Guehring, SCHUNK, LMT, CERACIZIT ... TAEGUTEC, KORLOY, and YG etc.Products Introduction:FeaturesThree sharp cutting edges for high quality threadsUnique guide rail interface between the insert and tip ... materialsMinimum internal hole from 20 mm (0.787 inch) cnc cutting tool bar