... finish die, PCD/PCBN cutting tool blanks, PDC cutters for oil/gas drilling and mining bits, PCD/PCBN cutting insert, ... machinery, electronics, aviation and space flight, optical instrument, glass, ceramic, oil, and geological drilling for the purposes.1) Grinding, honing, and ... polishing alloy, glass, ceramic, gem stone, and so on;2) Making solid polycrystalline ...