Large PCD polycrystalline diamond chips with a diameter of 70mm or more can be purchased externally, precision grinding and double-sided polishing can be made into super flakes with a thickness of 0.05mm to 0.65mm. The thickness tolerance of the super flakes can reach ±1 micron.

This technology continuously reduces the production cost of cutter wheels and is also widely used in the company's small and ultra-small PCD cutting tools.