There are many types of diamond segments in the market. The characteristics of diamond segments on diamond tools should match the properties of the materials to be cut. If the material is very hard, the bonding of the diamond part should be softer. Because diamonds tend to blunt when cutting hard materials. Softer bonding can make blunt drills wear faster, and then make the new diamonds below easier to expose and participate in cutting. If the material is relatively soft, the bonding should be harder. In this case, diamonds can last longer. Harder adhesives wear slowly, so they can keep diamonds longer. This can make better use of diamonds and extend the life of diamond tools.
Consideration should also be given to the gravel (size), hardness and concentration of diamonds in diamond segments. For example, when the material to be cut is soft, diamonds can be large in size, moderate in hardness and slightly higher in concentration. This combination can achieve good cutting efficiency and prolong the service life of the blade. When the material is hard, the diamond should be small in size, high in hardness and slightly low in concentration.