Profile cutters are very diverse because they do not have a standardized design like drill needles. But the most commonly used type is diamond milling cutter, commonly known as "pineapple knife", which takes its external pattern similar to the surface of pineapple. Its requirements are mainly flat edges of hard circuit boards and wear resistance of cutting tools. The characteristic of this kind of cutter is to mix the cutting and grinding functions, and the blade is thicker and stronger. However, if cutting some materials with lower hardness, the type of milling cutter can not be mainly grinding, and the cutter with side edge design must be used to carry out smoothly.
For some thin plate grooving or special needs of cutting work, the industry has so-called double-edged knife, three-edged knife and so on, the style is not enough. Some PCBs need to control the depth of grooving but do not want to penetrate the material. The milling cutter used in this processing mode must be a vertical end-face design
profile cutter. In fact, there are many kinds of milling cutters. For specific purposes, special purpose cutters can also be customized to manufacturers. You still have to choose according to your needs. We can't give you standard answers. The above is for your reference.