Grinding Wheels for PCB Micro Drill Bit

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 technique of PCB drill bit, it will use different wheels during various stages of the process.

  1. Cut off of Bar material
  2. First step:Rough grinding
  3. Second step: Peel grinding
  4. Third step: Slotting