Bits na haƙoran API na injin niƙa IADC217 inci 12 1/4 (311mm) don haƙo rijiya

Bit ɗin Tricone muhimmin kayan aikin haƙa mai ne don haƙa mai, aikin sa zai shafi ingancin haƙa, ingancin haƙa da kuɗin haƙa. Haƙa mai da haƙa ƙasa shine mafi amfani ko bit ɗin cone. Bit ɗin cone yana da tasirin girgiza, niƙawa da yanke dutsen samuwar yayin juyawa, don haka ana iya daidaita bit ɗin cone zuwa yadudduka masu laushi, matsakaici da tauri. Musamman a cikin bit ɗin jet cone da dogon bututun ƙarfe bayan fitowar bit ɗin cone, saurin haƙa bit ɗin cone ya inganta sosai, shine tarihin ci gaban bit ɗin cone babban juyin juya hali ne. Bit ɗin cone za a iya raba shi zuwa haƙori (haƙori) ta nau'in haƙori, hakori (bit) (haƙori da aka sanya masa haƙoran carbide) bit ɗin cone; gwargwadon adadin haƙoran za a iya raba shi zuwa bit ɗaya, biyu, Mazugi uku da Mazugi mai yawa. A gida da waje ana amfani da shi mafi yawa, mafi yawan shine bit ɗin Tricone.