Full top PCBN inserts possess excellent hardness and thermal stability and bears 1300 degree of cutting temperature, which is mainly used for machining Hardened Steel with HRC50-60 hardness.
For example: carbon tool steel, bearing steel, die steel and high speed steel and so on, gray cast iron, nodular cast iron, chilled cast iron and Ni-base、Co-base、Cr-base、Fe-base high temperature alloy.
Insoll Tools supply 3 grades PCBN inserts:
ITC10-for high speed machining grey cast iron. Roughing/semi-finishing light interrupted cutting.
ITC20-for roughing and semi-finishing cast iron.
ITC30-for continuous roughing and semi-finishing cutting high hard steel (HRC 45-65).