Na Mea Hana wili kiʻekiʻe 6542 Extra Long Twist Drill
ʻO ke kila kiʻekiʻe ka māmā wili wili he mea hana no ka wili ʻana i nā puka poepoe o kahi hana ʻāpana ma ka ʻōwili ʻana a me ka ʻoki ʻana e pili ana i kahi axis paʻa. Ua kapa ʻia ʻo ia ma muli o ke ʻano spiral o nā ʻohe chip, e like me nā wili. Loaʻa i nā ʻāwīwīwī he 2 mau ʻāwīwī, 3 mau ʻāwīwī a ʻoi aku paha, akā ʻo 2 mau ʻāwīwī ka mea maʻamau. Hiki ke hoʻopaʻa ʻia nā wili wili ma nā mea hana wili lima lima lima a i ʻole nā mīkini wili, nā mīkini wili, nā lathe a me nā kikowaena mīkini. ʻO ke kila kiʻekiʻe ka māmā holo kiʻekiʻe (HSS).
ʻO ka hoʻolālā ʻana o ka puhi puhi, ka hoʻolālā ʻana i ka ʻohe, ka ʻoki maʻalahi, ʻaʻole maʻalahi e pili i ka pahi, e hoʻokō i ka hana kiʻekiʻe. ʻO ka hana ʻOi aku ka pololei a me ka nani o ka ʻāpana.
E ho'ēmi i ka wili friction coefficient, precision kiʻekiʻe, pahee puka pā
ʻO ka ikaika o ka mālama ʻana i ka wela, ke kūpaʻa a me ka lōʻihi, ka noi ākea
