ʻO kahi pahu drill i loko o kahi mea paʻa mea paʻa (1) he wēlau i loaʻa ʻelua mea hoʻokomo ʻokiʻoki (5, 5') ma kahi mokulele nui (C-C), ʻo nā mea hoʻokomo ʻoki (5, 5) ') he kihi ʻoki waena pōkole e kuhikuhi ana ma luna. he mokulele lua maʻamau (E-E). Hoʻokumu ka ʻoki ʻoki i kahi ʻoki waena e like me ke kiko no ke komo ʻana i ka mea hana a ma laila ke kikowaena o ka drill bit. Ma luna o ka puʻu, ua hoʻolako ʻia nā ʻohe ʻelua chip (6, 6'), e hoʻolōʻihi ʻia mai ka wēlau a i lalo. Ma kēlā me kēia ʻāpana o ka puʻu, aia nā ʻōheʻe e kū pono ana kekahi i kekahi ma ka mokulele o ka paipu, a aia ka mokulele o ka paipu ma ka mokulele o ka ʻāina like (F-F) o nā ʻāina ʻelua ma nā ʻaoʻao ʻelua o ka paipu. ʻO ka hoʻonui ʻana ma 90 °, ʻoi aku ka paʻakikī o ka arbor ma kēia mokulele. ʻO ka mokulele ʻelua (E-E) o ka ʻoki ʻoki waena e kuhikuhi ʻia ma kahi kihi o 90 paha i ke kuhikuhi paʻa nui (F-F) o ka mokulele ʻāina a i ʻole ka hopena o lalo o ka shank.

Ma kahi hana wili no ka wili a i ʻole nā ​​mea like, hiki ke hoʻohaʻahaʻa i ka hoʻololi koke ʻana o ke kūlana wili, a me ka hoʻopaʻa ʻana i ka hana wili, ʻoiai i ka wā e hana ana i nā ʻāpana nui, ʻaʻole i hoʻohaʻahaʻa ʻia ka hana wili.

ʻO kahi ʻāpana ʻoki ʻoki i hoʻonohonoho nui ʻia ma ke ʻano radial, loaʻa ʻelua mau ʻāpana ʻoki nui ma lalo o ʻelua, a ma kahi o ʻelua mau kihi ʻoki kōkua i hoʻokuʻu ʻia ma waena o ka ʻāpana ʻoki nui a me ka ʻāpana ʻoki nui ma ka ʻaoʻao pōʻai. he oki oki nui e like me ka oki o ia mea, a o ka welau o loko o ka lihi oki nui aia ma ke kikowaena o ka oki ana, a o ka welau owaho aia ma ka lihi o ka wahi huli o ka mahele oki.