Polycrystalline diamond(PCD) sintered under high temperature and high press together with binder alloy is used. Diamond Drawing dies of high and consistent quality covering small to large diameters exhibit outstanding performance in larger size areas than single crystal diamond drawing dies. There are some factors to consider when specifying a PCD diamond die, PCD insert size, PCD grain size, casing size and hole geometry.
IWD regularly supplies full ranges of PCD diamond dies:
Sumidia PCD
Compax[...]