pū kaiwhakarato dth me ngā bit
Nō te whakamahinga i ngā tūtohi pū kōwhai DTH, he whakangungu nui tēnei i roto i te hanganga pū kōwhai, āhei ana hei hanga mō ngā mahi whakanui pūkōwhai i roto i ngā whenua kōhatu nui. Nā te whakaaetanga o ēnei tūtohi whakapēhea, e whakapakari ana i te whirinaki me te hanga tika, e āhuatia ana ngā hapa tungsten carbide hei whakamahere pai mō te whakapaihere i te nohohanga pūkōwhai. Ka mahi ngā tūtohi i runga i ngā pū kōwhai DTH, e whakamahi ana i te rautaki rorohiko me te rautaki pakipaki ki te whakawehewehe i ngā whenua kōhatu nui rawa atu. Ko te hanga ka whakauru hoki i ngā rākau hanga hāngaitanga matihiko e āhei ana ki te tahutahu pai i ngā kaihangatia pū kōwhai, ahakoa ko te wā e mahi ai te tūtohi. I whakaruruhia mai i ngā toko kōwhai uha matua, e pai ana ngā tūtohi pū kōwhai DTH ki te whai mana me te whakahē tuara, ā, ka pai hei whakamahi mō ngā tono hanga pū kōwhai i roto i ngā mahi kōpuke, ngā mahi kararahi, ngā mahi whakanuiake wai, me ngā kaupapa hanga. Kei ngā rahi katoa ngā tūtohi, e aumangea ana i waenganui i te 3 ki te 24 inch i te rahi whatumanawa, hei whakarite i ngā hiahia tono katoa. Ko ētahi atu āhuatanga hanga matihiko kei raro i te hanga nei, hei whakapai i te whakatakoto hapa mō te whakahaere pai i te wehewehe, ngā patapata matawhai whakahē, me ngā rākau whakawehewehenga kōwhai e whakamahia ana hei whakawehe i te kōrero tūtohi. E huihui ana ēnei whakangungu hanga matihiko ki te torotoro haere here, ki te whakatika pai i ngā rua, me te wā katoa o te hanga.
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