... TiN, TiCN, Al2O3, TiALN4,Application: J55, N80, P110Our Carbide API Inserts are used for machining casings, tubings, leadout pipes, drill rod ... for geological applications in standard or special CNC threading turning machines.They feature a rigid security and convenient clamping, ... machines.As a majore and professional manufacturer of carbide oil threading inserts in China, we can offer you a complete ...