Tools and inserts in CBN (cubic boron nitride polycrystalline) ensure during turning manufacture on hardened ferrous materials, with hardness usually above 50 HRC, a satisfactory result eliminating most of the times the grinding operation.

	The life of the tool results increased. The speed of processing is considerably reduced and the tolerance of components has been improved.
The aim of our development, further the reliability and efficiency of tools, is the simplification of processes.