Moetsi oa API oa tricone rock bit IADC617 9 7/8 inches” (250mm)

Ho ya ka thepa ya ho seha, thirocne bit e ka arolwa ka thiro ya TCI le thiro ya meno ya tshepe.
TCI IADC617 ke ea ho theha ka thata e mahareng. Ho khetha mafika a nepahetseng a ho phunya likarolo ho bohlokoa haholo pele o qala projeke.
Bothata ba mafika bo ka ba bonolo, bo mahareng le bo thata kapa bo thata haholo, boima ba mofuta o mong oa mafika le bona bo ka fapana hanyane, mohlala, lejoe la mokoetla, lejoe la lehlabathe, shale le na le lejoe la mokoetla le bonolo, lejoe la mokoetla le mahareng le lejoe la mokoetla le thata, lejoe la lehlabathe le mahareng le lejoe la mokoetla le thata, jj.
Morerong oa ho cheka, Bochabela bo Hōle bo na le boiphihlelo ba lilemo tse 15 le linaha tse fetang 30 ho fana ka lits'ebeletso tsa ho cheka le mekhoa e tsoetseng pele ea ho cheka bakeng sa lits'ebetso tse fapaneng. Ts'ebeliso e kenyelletsa tšimo ea oli, khase ea tlhaho, lipatlisiso tsa jeoloji, ho tjhesa metsi, merafo, ho cheka seliba sa metsi, HDD, kaho, le motheo. Li-drill bits tse fapaneng li ka fetoloa ho latela sebopeho se fapaneng sa lefika hobane re na le fektheri ea rona ea li-drill bits e netefalitsoeng ke API le ISO. Re ka fa moenjiniere oa rona tharollo ha u ka fana ka maemo a itseng, joalo ka ho thatafala ha majoe, mefuta ea rig ea ho cheka, lebelo la rotary, boima ba bit le torque. Ho boetse ho re thusa ho fumana li-drill bits tse loketseng ka mor'a hore u re bolelle ka ho cheka seliba se otlolohileng kapa ho cheka se otlolohileng, ho cheka seliba sa oli kapa ho cheka se sa chekoeng kapa ho bokella motheo.