Comprehensive CBN range for P/K/H material groups The machining efficiency of Deltacut CBN insert is 5-10 times that of the carbide insert, which greatly improves the equipment capacity and reduces the fixed investment of equipment. Deltacut CBN insert can be used for both dry cutting and wet cutting and one grade normally is suitable for machining a variety of materials. The service life of Deltacut CBN insert can be more than 5- 10 times that of carbide insert and reduce the cost of comprehensive cutting tool by 30%-50%. The interval time between the replacements of Deltacut CBN insert is long and the insert replacement frequency is less, which can significantly reduce the cost on inserts. General PCD grade, with high impact resistance and very high wear resistance.