... ,Natural diamond,Polycrystalline Diamond,Tungsten CarbideCase:Stainless SteelMCD&ND Drawing DiesHole size: 0.03mm—1.00mmCase size: 25x12mm,28x11mm,30x15mm,25x10mm,24x10mm ... ,etc. PCD Drawing DiesHole size: 0.10mm—10.00mm Case size: 25x12mm,28x11mm,30x15mm,25x10mm ...