We will get to know the single crystal ball end milling cutter in the content introduction of this section. Single crystal refers to single crystal diamond, mainly including 

natural diamond ND, artificial diamond MCD and CVD. Let's introduce the grinding method of cutting tools including single crystal ball end milling cutter. Let's take a 

look at the function of the ball end milling cutter first.

Ball end milling cutters can mill die steel, cast iron, carbon steel, alloy steel, tool steel, and general iron, and belong to end mills. Ball end milling cutter can work normally 

in high temperature environment.

One of the grinding methods, concave grinding, is introduced here today.

Hollow Grind: A groove is dug on both sides of the insert face. Because it is easy to process and design, many factory inserts on the market use this grinding method. 

The biggest advantage is that after this grinding, a very thin insert will be formed, and the thinner the insert, the better the cutting ability.

Its disadvantage is: the thinner the insert, the more fragile it is. It can cut and cut hard objects or tissues, but it is not suitable for chopping when cooking food, because 

the longitudinal section of the insert is non-linear, so it cannot cut too deep.

Concave sharpened inserts are not recommended for chopping because their inserts are relatively fragile. Its biggest advantage is to increase the cutting ability of the insert, 

especially when the insert face is not wide enough. Early razors used concave grinding.