... PCD blank is manufactured by world famous companies such as Element Six (DeBeers), DI (GE), ILJIN, SMITH, SUMITOMO and TOMEI. ... ) diameter x thicknessGrain size (μm)PCD layer thickness (mm)Element Six (E6)CTB00274x1.6/2.0/3.182μm0.3 ... metal, tungsten carbide, ceramic, nonmetal and composite material.MaterialThe PCD blank uses diamond powder and tungsten carbide.Packaging Plastic case High quality PCD ...