The printed circuit board (PCB) is composed of copper clad Laminate (CCL), etc. That is mainly divided into three categories according to the structure, namely single layer PCB and double layer PCB and multi Layer PCB.

The printed circuit board factory cuts the copper clad laminate into the process according to the width and length required by the customer until it is pressed into various types of plates (single layer PCB, double layer PCB or multi layer PCB), which requires different cutting knives for the processes. The circular knife shape described below is suitable for cutting of copper clad laminate and printed circuit board.