This structure has the advantages of the general machine tool folder: the head part can be re-grinding, increasing the life of the tool; Arbor can be reused, does not cause waste. But the overall tool, the head part of the total cost of about 90% of the tool, the arbor cost accounted for a very small proportion. The shortcomings of this structure: First, an increase in the connection part of the knife when the folder is not good, resulting in a small movement will also cause a knife, the reliability of the tool has been reduced; Second, the tip part of the PCBN composite film area is small , The number of re-grinding is very limited, while PCBN composite sheet and the head welding area is small, when the cutting temperature increases, the welding part of the softening, strength decreased, the entire PCBN composite film off, resulting in a knife.

A PCBN composite sheet is welded to one corner of the indexable carbide blade (also having two corners or the entire surface of the PCBN composite sheet). This structure is the same as the standard carbide blade can be used directly on the positioning of the arbor. And in addition to the same disadvantages as those of the above (1), there is a drawback that it can not be re-ground. Therefore, the cost of the tool is higher. At present, this tool is mainly used for high degree of automation of the processing center and CNC machine tools.