mati pā kō whatu PDC
Kei te whakamahia te PDC rock bit hei whakamātau hiranga whānui i roto i te hunga whakatupu, e whakapakari ana i ngā whenua me ngā hiranga tūhono mō ēnei whakahaere katoa. Ko tēnei taputapu matihiko kei raro i a ia ngā kutu polikarihana diamana i taurangi pūmau ki runga i tētahi tinana aokī matua, e hiahia ana kia kitea ai ngā hanganga oneone me ngā hanganga tirohanga. Kei roto i te hanga o te PDC rock bit ngā kaupapa take matihiko e whai ana i te hiranga pai rawa o te kutu me te oranga noho herehere ake. E ai ki te whakaaturanga o te kupu, ko te whiuwhiu o ngā kutu he iti nei e whakariterite ana, e whakaaetanga ana i te mahi whakatupu ki waho i te ara kotahi o te whakakore i waenganui i te ara matua o te whakakore i mua. Ka whakahētia e tēnei whakanui i te wā me te kaiwhakamahi i te whakatupu, ahakoa te whakahaere pai o te tūranga. Kei raro i te hanga wai o te bit ngā puipui e whakatakoto ana i te tika, e āhei ana kia pai ai te whakamahere me te whakawhitiwāhi o te whiuwhiu, e whakaiti ana i te momo bit balling me te whakapai i te katoa o te mahi. Nā te nuinga o ēnei bits ka puta pai ki ngā hanganga oneone iti ki te nui, ka mutu ka whai mana tonu ki ngā kaupapa rangahau oiha me ngā kaupapa haumaru oneone, me ngā kaupapa whakatupu geothermal. Ko te hanga matihiko hoki o te PDC rock bit e whakamahia ana hei whakapai i te tiromataritanga, e iti whakaititia ana i te tirotiro me te whakarite i te taumata herehere, ka puta ai ngā whakahaere whakatupu pai me te whakapai i te kua o te rua.