Nā ʻāpana wili kumu kūʻai haʻahaʻa IADC217 14 3/4 iniha (374mm) no ka pōhaku paʻa.

E like me ka ʻoki ʻana i nā mea, hiki ke hoʻokaʻawale ʻia ʻekolu cones bit i TCI bit a me Steel Tooth Bit
He inoa ʻē aʻe ko nā niho kila niho tricone bit mai ka mea i hana ʻia nā niho e ka mīkini wili, ua paʻakikī ke alo o ka cone e ka tungsten carbide. ma ROP kiʻekiʻe.
Ma nā papahana wili ʻaila, hiki i ka ROP ke piʻi i 30 mau mika i kēlā me kēia hola ma ka wili ʻāpana pāpaʻu.
Ma ka hana wili, ua loaʻa iā Far Eastern he 15 mau makahiki a ʻoi aku ma mua o 30 mau ʻāina i ʻike i nā lawelawe e hoʻolako i nā drill bits a me nā soulutions drilling holomua no nā noi like ʻole. ʻO ka noi e pili ana i ka māla aila, ke kinoea maoli, ka ʻimi ʻana i ka honua, ka hoʻoheheʻe ʻana, ka ʻeli ʻana, ka luawai wai, ka HDD, ke kūkulu ʻana, a me ke kumu. o nā ʻāpana drill. Hiki iā mākou ke hāʻawi i ka hopena o kā mākou ʻenekinia inā hiki iā ʻoe ke hoʻolako i nā kūlana kikoʻī, e like me ka paʻakikī o nā pōhaku, nā ʻano o ka wili wili, ka wikiwiki o ka rotary, ke kaumaha ma ka bit a me ka torque. He mea kōkua nō hoʻi iā mākou e ʻimi i nā ʻāpana drill siutable ma hope o ka hiki iā ʻoe ke haʻi iā mākou i ka wili ʻana a i ʻole ka wili ʻana i ka ʻaila, ka ʻaila ʻaila a i ʻole ka wili No-Dig a i ʻole ka hoʻokumu ʻana i ke kumu.