1 E ai ki te ahua o te hua whakamutunga, Kei te waatea te ngongo porowhita me te ngongo tapawha.
2 E rua nga momo tapahi. Te tapahi kani rere me te tapahi waipēhi.
3 He kaha te hanganga, he panui pakitara matotoru, he motini nui, he porowhita nui, he roera nui, me etahi atu rarangi hanga. Ko te taraiwa mekameka, ko te tere 8-10m / min.
4 Diamita o te ngongo porowhita (70mm, 80m, 90mm), te diameter o te ngongo tapawha (3"×4").
5 Kei roto i taua momo momo miihini te miihini whakahiato roera, te miihini whakapiko, te hanga pukapuka me te whakapiko i te miihini katoa-i-kotahi me te miihini whakakao.