Koho mākou i nā mea kila kila kiʻekiʻe 42CrMo a me 40CrNiMo, e hoʻohana i ka hana ʻana i nā lako hana CNC e hōʻoia i ka pololei o ka huahana a me nā koi hiʻohiʻona, koho i ka wai quenching i lawe ʻia mai a me ka ʻenehana hoʻomaʻamaʻa wela kūikawā, a hoʻomaikaʻi nui i ke ola lawelawe a me ka paʻa o nā chisels.