nga momo puhoro kō whatu
He tārewa nui ngā pūhiko kō whatu i te mahi kohatu, te hanga whare, me ngā mahi whakamahitahi whenua, e whai ake nei i ētahi mīhini tētahi he mea hanga hei whakamahi mo ngā matatika ā-wheako. Ko ngā uiui tuatahi ko ngā pūhiko kō whatu pneumatic, hydraulic, me ngā pūhiko kō whatu electric. E ai ki te pneumatic drill, ka whai i te hāwai raruraru hei mahi, me utu iti i te whakahaere pai, koia enei pai ki te mahi kohatu tahuhu. Ko ngā pūhiko kō whatu hydraulic, kei raro i ngā reta ā-tinana hei whakamahere i te wehewehe me te pai o te mahi, ā, kei te whakamahi tonu i te mahi kohatu i runga me ngā nuinga hanga whare rahi. Ko ngā pūhiko kō whatu electric, he mahi taiao tonu, he iti noa iho i ngā reo, pai ki te hanga whare i roto me te mahi whakahouwhenua. Kei raro i ēnei tārewa ngā whakangao hanga hou, e kite ana i ngā rangitaki whakauru, i ngā pūnaha whakamutu tararau, me ngā pūhiko whakapiki kō whatu e āhei ana ki te whakarerekē i ngā momo kō whatu mo ngā momo kō whatu rerekē. I whakangao hoki ngā pūhiko kō whatu hou i ngā hanga pai mo te tangata kaiwhakahaere hei whakaiti i te mate uru whenua, me te whakapai i te haumaru, ā, ka whakamahi hia ngā pūnaha tirohanga mōhiohia hei whakapai i te mahi kō whatu me ngā raupapa whakahaere. Ko te whanaketanga o ngā pūhiko kō whatu e whai ana i ngā whakamahi i ngā poraka kohatu, te hanga ruaheke, te mahi pūtake, me te tirotiro whenua, me ia momo pūhiko e whai ana i ngā pai tētahi mo ngā wāhanga mahi rerekē me ngā hiahia tonu o te kaupapa.
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