I loko o ka nui o nā mea hana i hoʻohālike i ka moʻomeheu kanaka, mai ka lever haʻahaʻa a hiki i ka microchip paʻakikī, kū hoʻokahi mea hana no kona ʻano āpau, maʻalahi, a me ka hopena hohonu: kawili wili wili pololei. ʻO kēia ʻāpana metala cylindrical maikaʻi ʻole, me kāna mau ʻāpana spiral i hana pono ʻia, ʻo ia ke kumu kumu o ka hana ʻana a me ka hui ʻana, i loaʻa i kēlā me kēia hale hana, hale hana, a me nā hale a puni ka honua. ʻO ia ke kī e wehe i ka hiki o nā mea paʻa, e ʻae iā mākou e hui, hoʻopaʻa, a hana me ka pololei ʻole.
ʻOiai ʻo ka hana o ka wili ʻana he mea kahiko ia, mai ka wā prehistoric me ka hoʻohana ʻana i nā pōhaku ʻoi a me nā kakaka, ʻo ka wili wili o kēia wā he huahana ia o ka Industrial Revolution. ʻO ka mea hou koʻikoʻi ka hoʻomohala ʻana i kāna ʻohe helical, a i ʻole spiral groove. ʻO ka hana mua o kēia ʻāwī he ʻelua: e hoʻokahe pono i nā ʻāpana (ka mea ʻōpala) mai ka ʻoki ʻana a ma waho o ka lua i wili ʻia, a e ʻae i ka ʻoki ʻana i ka wai e hiki i kahi o ka pili. Mālama kēia i ka wela nui, hōʻemi i ka friction, a hōʻoia i kahi puka maʻemaʻe a pololei. ʻOiai he 2, 3 a ʻoi aʻe paha nā ʻauwaʻa spiral, ʻo ka hoʻolālā 2-flute ka mea maʻamau, e hāʻawi ana i ke koena kūpono o ka wikiwiki o ka ʻoki ʻana, ka wehe ʻana i ka chip, a me ka ikaika iki.
Hoʻopili ʻia ka maʻalahi o ka drill shank twist drill bit ma kona inoa. 'O ka "sight shank" e pili ana i ka hope cylindrical o ka bit i ho'opa'a 'ia i loko o ka pahu mea hana. ʻO kēia hoʻolālā holoʻokoʻa kona ikaika nui loa, e hiki ai i ka hoʻohālikelike ʻana me kahi ʻano mīkini. Hiki ke hoʻopaʻa paʻa ʻia i loko o kahi wili lima lima maʻalahi, kahi mea hoʻoheheʻe lima lima ikaika, a i ʻole kahi mīkini wili paʻa nui. Eia kekahi, ʻoi aku kona pono ma mua o nā lako wili i hoʻolaʻa ʻia; he mea hana maʻamau ia i nā mīkini wili, nā mīkini, a me nā kikowaena mīkini hoʻomalu kamepiula. Hoʻolilo kēia ʻano honua i ka lingua franca o ka honua mīkini.
ʻO ka haku mele ʻana o kadrill bitua kūpono i kāna hana. ʻO ka mea maʻamau ʻo High-Speed Steel (HSS), he kila kila kila i hoʻonohonoho ʻia i hoʻopaʻa ʻia i kona paʻakikī a me ka ʻoki ʻana i nā wela kiʻekiʻe i hana ʻia e ka friction. ʻO nā bits HSS ka lōʻihi loa a me ke kumu kūʻai, kūpono no ka ʻeli ʻana i ka lāʻau, ka plastic, a me ka hapa nui o nā metala. No nā noi koi nui loa, e like me ka wili ʻana ma o nā mea abrasive e like me ka pōhaku, ka ʻuala, a i ʻole nā metala paʻakikī loa, hoʻohana ʻia nā ʻāpana drill carbide paʻa. ʻO Carbide, kahi mea i hoʻohui ʻia i loko o nā ʻāpana tungsten carbide i hoʻopaʻa ʻia me ka cobalt, ʻoi aku ka paʻakikī ma mua o ka HSS a hāʻawi i ke kūpaʻa ʻoi aku ka maikaʻi loa, ʻoiai ʻoi aku ka palupalu.
Mai ka hui ʻana o nā ʻāpana aerospace a hiki i ka hana ʻana i nā lako nani, ʻo ka shank twist drill bit he mea pono nui. He hōʻike ia i ka manaʻo ʻo nā mea hou loa e hoʻokō i ka hana hoʻokahi, koʻikoʻi me ka maikaʻi ʻole. ʻAʻole ia he mea paahana wale nō; ʻo ia ke kumu i kūkulu ʻia ai ka hana hou a me ka akamai DIY, hoʻokahi puka pololei i ka manawa.
Ka manawa hoʻouna: ʻAukake-14-2025
