Ka eke tonu te mahi o te tahua me te whakaputa i ngā mahi kuhuwhenua, ka taea e he ke ake te roa o te pūtake ki te āwhina i ngā mōhiohanga e hiahiatia ana te maha o te mahi. E hanga nei ngā pūtahi i te whakamahere o ngā rau tahunga, e paihere ana i te whakatika me te roa o te wā. He mōhiohanga tūmanawa nui, pērā i te ira zirconia-alumina, e whakaaro ana i te wehewehe me te rangatira o te tahunga, ka whakamahia hei whakangungu. Ki te whakatau, ko ngā whenua o te whakawhanake waka, ko te haupu, ko ngā pakihi whakapapa iwi e whakamahi ana i ngā whakahoki i te whakamahi o ngā pūtahi roa hei tirotiro i ngā rīpeka matemate, i te kōkōwai, me ngā kōti kē o mua mai i ngā whare whakamate i te mete nui. I runga i ngā momo tahunga nui me ngā hiahia whakamahi nui, ka mau tonu ngā pūtahi i te pai me te whakapono i te tahunga nui.