ʻO nā drill twist ka nui o nā drill e hoʻohana i nā hana maʻamau maʻamau no ka nui o nā hana drilling. Hiki iāʻoe ke koho i nā mea kila kila kiʻekiʻe e pili ana me M42, M2, M2, 4341 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 a me 4241 Hāʻawi pū mākou i nā kūlana hana'ē aʻe, me DE DE 338, Din 340, Din 1897, a me nā lōʻihi hana e hoʻokō ai i kāu mau pono'ē aʻe.

Loaʻa kēia mau pahu drill twill i nā pauna likeʻole,ʻaʻole lākou e hana i ka hana maikaʻi, akā he mea hoʻi hoʻi i ka hanaʻana. Inā makemakeʻoe i ke kalaʻokoʻa'ē aʻe, hiki iā mākou ke hana noʻoe.
Hele mai nā Drills me nā kihiʻeluaʻelua: 118 degere a me 135 degere, e like me ke kohoʻana i nā mea likeʻole e hoʻokō ai i nā pono a me nā noi. Eia kekahi, hiki iāʻoe ke koho mai nāʻano likeʻole e like me nā shanks pololei a iʻole nā mea e pono ai nā hana hana.

Hāʻawi mākou i nā'āpana maʻamau mai 0.8 mm i ka 25.5 mm, 1/16 inch a iʻole eʻike i ka nui kūpono no kāu hana. Inā makemakeʻoe i nāʻano'ē aʻe ma luna aʻe, eʻoluʻolu eʻoluʻolu e hoʻokaʻaʻike mai iā mākou.
Ināʻoe e hana nei i loko o ka hana metal, kūkulu, a iʻole kahi kahua'ē aʻe, piha piha i nā pahu drill drill e hāʻawi iāʻoe i ka hana maikaʻi a me ka hilinaʻi. Inā makemakeʻoe e hoʻoheheʻe wikiwiki a hana pololei a hana paha ma nā mea kūikawā, loaʻa iā mākou nā huahana e hoʻokō ai i kāu mau pono. Hāʻawi ka laulā ākea o nā huahana i kahi koho ākea no kāu papahana, e hōʻoiaʻiʻo ana e loaʻa iāʻoe nā hopena maikaʻi loa no kāu hana. Ke koho neiʻoe i nā mea nui o ka'āina i nā pahu pahu, e loaʻa iāʻoe ka hui kūpono o ke kūlana kiʻekiʻe, a me ka hilinaʻi a me ka hilinaʻi.