Nā hiʻohiʻona:
ʻAʻole pono no ka wili mua ʻana, ʻaʻohe pono no ka ʻeli ʻana o ka lua lalo, hiki i ka mea ʻoki milling thread ke hoʻopau i ka lua lalo, ka milo, a me ka chamfer milling processing i hoʻokahi hele i hui pū ʻia me kahi uhi DLC kala, hoʻomaikaʻi maikaʻi loa ia a hoʻololi i ka hana kuʻuna i ka wā e hana ana i ka non-ferrous. nā metala e like me ke keleawe a me nā aluminika.