pū kō whatu iti
Nā ngā pū kōhatu iti i whakatupuranga tūhuratanga hei tārai kōhatu me te tango i ngā momo whenua i waenganui i ētahi whakahaere tārai. Ko ēnei pū iti noa, nā reira he wairua nui, e whai ake ana i ngā whatunga tārai matua, e tipu tonu ana i te tungsten carbide rānei ko te maminga diamond, ka whakaritea hei whakapai i te hīkoi tārai. E ai ki ngā whakaritenga, e huringa ana ngā pū i waenganui i ngā rola kōnaki, PDC (Polycrystalline Diamond Compact), me ngā kēmu diamond, ina whakatika i ngā take kōhatu me ngā whakahaere tārai. He mōhiotia ngā whaimana hou hei whakapai i ngā whatunga tārai mō te whakaharahara atu, te whakariterite i ngā putanga uku hei whakapai i te mātai me te tango i ngā kereka, me ngā momo whenua kaha e paihere ana ki te wehe i te whakamutunga i ngā taiao kaha. Ko ēnei pū e uiuitia ana i ngā whakahaere e hiahiatia ana te kawe āhuatanga me te whakawhanake, pērā i te whakamātaa iwi, hangai, haere, me te tārai wai puna. Ko tō rātou tinana iti ka whakawhiwhia mai ki te mahi i waenganui i ngā wāhi iti, ahakoa kei runga i ngā paerewa huarahi nui. Nā ngā hoahoa hou o ngā pū kōhatu iti o nehe ka whakapai i te tino tika o te tārai, ka whakaiti i ngā whiuwhiu, me te whakapai i te whakawhitinga o te huringa, ka puta he tārai hoki e kaha ana me te oranga roa o te pū.
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