ʻO ka puʻuwai ʻole, ʻike ʻia ʻo ia ka mea ʻike ʻia a me ke kahe ʻike paha, e pili ana i kekahi ʻano o ke kaila ʻike ākea e kuhi ana i nā lua pele i ka ʻenehana a i ʻole ka ʻenehana. He maʻalahi ka hoʻokō, maʻalahi ke halihali, palekana a hoʻohana nui ʻia. Ke hoʻokomo ʻia ʻo ka pahu opener (cutter) i ka pahu hana uila maʻamau, hiki iā ia ke ʻokiʻoki i ka lua o ka mokupuni, hole hole, triangle hole, laina pololei a me ka pihi i ka mokulele, spherical permukaan a me nā papa ākea paʻa ʻole o nā papa like ʻole e like me ke keleawe , hao, hao kila a me plexiglass.
E like me nāʻokoʻa like ʻole o nā pōpoki, he ʻokoʻa nā ʻoi a me nā kikoʻī. Ma ka manawa like, e like me ka hohonu o ka wehe ʻana o ka lua, hiki ke hoʻokaʻawale iā ia i ʻelua mau ʻano: ka mana o ka pahu a me ke kikowaena lua hole puʻu. Hoʻohana ʻia ia ma nā mea uila e like me ka pahu kaʻa uila, hopena drill a me ka drill rocker.
Hole opener
He mau ʻano o ke anawaena paʻa a me ka laulā ākea (ʻano hana mokulele). Hoʻohana pinepine ʻia ka ʻōmole hole hole opener no ka hoʻōla kūloko a me waho.
Hōʻailona ka puka ʻana o ka hole hole, ʻo ka hopena a me ka ʻano hoʻonaninani wai, kahi ʻano maʻamau no ka puka ʻana o ka wai no ka wehe ʻana o ka pā, me ka hana kiʻekiʻe a me ka wehe ʻana o ka lua.
Wahi a nā ʻano papa inoa: bimetal hole opener, carbonide opener, diamond hole opener. Hoʻohana ʻia nā mea like ʻole e ʻoki i nā mea like ʻole, ʻo ka mea maʻamau ka mea maʻamau ka bimetal hole opener, ʻoi aku ka mea paʻakikī metala e hoʻohana ai i ka alloy paʻakikī, ke aniani, ka carbon fiber, ceramics a me nā mea maʻalahi e hoʻokaʻawale ʻia e hoʻohana i ka lua o ka lua o ka puʻukena kila