
ʻO ka External Chip-Evacuation Deep-Hole Drill he mea hana machining kiʻekiʻe i hoʻolālā ʻia no nā hiʻohiʻona wili hohonu, kahi e hoʻonā ai i nā wahi ʻeha nui o nā puʻu hohonu kuʻuna e like me ka puʻu chip, ka paʻa ʻole a me ka haʻahaʻa haʻahaʻa. ʻO kāna ʻano hana hoʻokaʻawale ʻokoʻa o waho ʻo ia ka pōmaikaʻi nui, hiki ke hoʻokuʻu i nā chips i hana ʻia i ka wā o ka wili ʻana i waho i ka manawa maoli, me ka pale ʻana i ka hōʻiliʻili chip i loko o ka lua drill, e hōʻemi ana i ka ʻaʻahu a me ka pōʻino o ka mea hana, a me ka hōʻoia ʻana i ka kūpaʻa a me ka hoʻomau o ke kaʻina hana.