Ki te hiahia nui rawa me te tūnui e mōhio ana, ko ngā pereki whakapakoko ika raua ko te alumina zirconia he taonga whai mana nui i waenganui i ngā tohunga. Ki runga i te poraka āhuarangi o ngā matū nei, ka puta he kawe kutu wairua pai, e mahi ana i a ia hei tino pai mo te whakapakoko roa rānei, iti rānei. Ka taea hoki e rātau te whitiwhiti i te ururoa me te wareware nui, me utu anō rātau mo te mahi takeke noa. No reira, ko te roanga whaiaroaro nui o ngā whatitanga me ngā momo pereki, ka kitea ai e koe te pereki tika ki runga i a koe, ka whai hua ai tō mahi me te pai o ō mahi.