Stone cutting blade to distinguish good and bad

Diamond saw blade is a cutting tool, widely used in stone, ceramics and other brittle materials processing. Diamond saw blade consists of two parts; the base body and head. Head  cubic boron nitride  is bonded to the main support part and head is in the course of the part from the cutting, head are constantly in use and consumed, and the base body is not, the cutting head is able to play the role because it contains diamond,  cubic boron nitride  as the most material, which cut the tip friction object to be processed while the diamond particles from the metal inclusions inside the tip in use, together with the consumption of the metal matrix of diamond, generally more desirable than the case of consumption of the metal carcass abrasive grinding  fast, so that the sharpness of the blade can ensure head while ensuring long service life of the middle part of the matrix is usually Mn steel outer part of the head.