Nā ʻāpana wili haʻahaʻa IADC217 14 3/4 ʻīniha (374mm) no ka pōhaku paʻakikī

Wahi a ka mea ʻokiʻoki, hiki ke hoʻokaʻawale ʻia ʻekolu mau cones bit i ka TCI bit a me Steel Tooth Bit
ʻO nā ʻāpana tricone niho kila he inoa ʻē aʻe ʻo ka milled tooth tricone bit ʻoiai ua hana ʻia nā niho e ka mīkini wili, ua paʻakikī ka ʻili cone e ka tungsten carbide. ʻOi aku ka lōʻihi o nā niho o nā ʻāpana tricone niho kila ma mua o nā ʻāpana TCI tricone i hiki iā ia ke wili i nā ʻano palupalu ma ke kiʻekiʻe ROP.
I nā papahana ʻeli ʻaila, hiki i ka ROP ke hōʻea i 30 mika i kēlā me kēia hola i ka ʻeli ʻana i ka ʻāpana pāpaʻu.
Ma ka papahana ʻeli ʻana, he 15 mau makahiki a ʻoi aku ma mua o 30 mau ʻāina ka ʻike lawelawe o Far Eastern e hoʻolako i nā ʻāpana ʻeli a me nā ʻuhane ʻeli holomua no nā noi like ʻole. ʻO ka noi e pili ana i ke kahua ʻaila, ke kinoea kūlohelohe, ka ʻimi honua, ka hoʻopōʻino ʻana i ke ala, ka mining, ka ʻeli ʻana i ka luawai wai, HDD, ke kūkulu ʻana, a me ke kahua. Hiki ke hoʻopilikino ʻia nā ʻāpana ʻeli like ʻole e like me ke ʻano pōhaku like ʻole no ka mea he hale hana ʻeli ponoʻī kā mākou API a me ISO. Hiki iā mākou ke hāʻawi i ka hopena a kā mākou ʻenekinia ke hiki iā ʻoe ke hoʻolako i nā kūlana kikoʻī, e like me ka paʻakikī o nā pōhaku, nā ʻano o ka wili ʻana, ka wikiwiki rotary, ke kaumaha ma ka ʻāpana a me ka torque. Kōkua pū ia iā mākou e ʻimi i nā ʻāpana ʻeli kūpono ma hope o kou haʻi ʻana mai iā mākou i ka ʻeli ʻana i ka luawai kū pololei a i ʻole ka ʻeli ʻana i ka pae, ka ʻeli ʻana i ka luawai aila a i ʻole ka ʻeli ʻana i ka No-Dig a i ʻole ka pila kumu.