pūtake whakarotoro
Nā ngā pū kōwhiti e taea te utu he whiwhinga hanganga mo te hunga e mahi ana i ō rātou ake kaupapa ā-waihanga, ā, mo ngā tohunga matua hoki e hokinga nei i ngā taputapu pai me te kore e kitea ai te pūtake moni. E hangaia nei ngā taputapu wero nei hei whakamana i te mahi haumaru i runga i ētahi atu momo, ina, i te miro, i te poraka, i te karbonaki, me te tahuhu whare. Ko ngā pū kōwhiti hou e taea te utu he pū whenu tika nui ki te whakatere i ngā wāhi kawe me te whakauru mai i ngā momo HSS (High Speed Steel) rānei ko ngā poraka, e whakamana ana i te tuhinga tūpato i waenganui i te whanaketanga me te pai o te utu. Hei tā rātou, e mau ana ngā kākano tiwai me ngā kākano karaka hei whakapai i te āhua e kore rawa e wehe nei i te whakahaere i te weu me te whakamahere i te uru wera, e whakapai ana i te roa o te wā e taea ai te mahi. Kei roto i te nuinga o ngā pouako pū kōwhiti e taea te utu, he raupapa o ngā momo e whai mana ana, e whai ake nei i te 1/16 inch ki te 1/2 inch, me ēnei ka pai hei whakamahia mo ngā tūranga e tino rahi ana o ngā kaupapa kōwhiti. Ka taea e ēnei pū te whakaaetanga i ngā kōwhiti motuhake me ngā kōwhiti pū, me ngā horopaki kōwhiti e whakatutuki ana i te weu i te wā o te mahi. Ki te kore e whai pū te utu, kei roto i ēnei pū kōwhiti ētahi atu whakawhanake, pērā i ngā pū tipi e whakaiti ana i te wehe i te wā o te kōwhiti me te whakapai i te tino tika o te kōwhiti.