CBN inserts for hard turning with multiple CBN edges,throughly welded and thick tipped CBN PCBN inserts.They are strongly welded CBN inserts suitable for heavy turning cast iron,alloy,carbide and hardened steel workpieces,CBN Edges are welded on the carbide blank substrate,good for heavy load cutting conditions.CNGA,VNGA,CCGW,SNGA,WNGA CBN Inserts.