What is PCB (Printed Circuit Board)
A flat plastic or fiberglass board on which interconnected circuits and components are laminated or etched. Chips and other electronic components are mounted on the circuits. Computers consist of one or more printed circuit boards, usually called cards or adapters.
PCB Micro drill bit
The carbide drill bit or end mill that used for gun drilling the Printed Circuit Board of the motherboard of computer, telephone, fax, mobilephone, etc.
PCB Micro drilling wheel
According to different processing techniques of PCB drill bit, it will use different wheels during various stages of the process.
Cut off of Bar material
First step: Rough grinding
Second step: Peel grinding
Third step: Slotting
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