Likotoana tsa ho phunya tsa Tricone IADC537 4 3/4″ (120.6mm)

Liindasteri tsa Bochabela bo Hōle li ikhethile ka ho khetheha ka likotoana tsa ho drilla, joalo ka likotoana tsa tricone, likotoana tsa PDC, opener ea lesoba la HDD, li-cutter tsa roller tsa motheo bakeng sa lits'ebetso tse fapaneng.
Jwalo ka fektheri e etellang pele ya di-drill bits Chaena, sepheo sa rona ke ho eketsa nako ya tshebetso ya di-drill bits. Kamehla re leka ho ntlafatsa di-bits ka sekgahla se hodimo sa ho kenella. Morero wa rona ke ho rekisa boleng bo hodimo ka theko e tlase.
Ho ya ka thepa ya ho seha, tricone bit e ka arolwa ka bit ya TCI le Bit ya Leino la Tshepe. Bit ya tricone drill ya TCI IADC537 4 3/4 inches(120.6mm) e sebediswa kamehla ho tjhekeng metsi a sa tebang, ho tjhekeng metsi a sediba sa geothermal le ho tjhekeng dikoti tsa grouting, bearing e kwetsweng/e kwetsweng e atolosa bophelo ba ho sebetsa, tungsten carbide e kenya tshireletso ya gauge hodima serethe sa dikhoune, e sireletsa mmele wa khoune hore o se ke wa aparwa. Kgokelo ya khoele ya API ke 2 7/8 reg pin.
Barekisi ba e sebelisa haholo tšimong ea ho cheka liliba tsa metsi libakeng tsa lithaba tsa Afrika, liphaephe tsa ho cheka tsa lisenthimithara tse 3 li lula li kenngoa ka mor'a hore ho chekoe lesoba la bophara ba 4 3/4".