IDC217 17.5 inci (444.5mm)

Dribit shine na'urar da ke makale a ƙarshen igiyar rawar sojan da ke karyewa, yanke ko murkushe sifofin dutsen lokacin da ake haƙa rijiya, kamar waɗanda aka haƙa don hako ruwa, gas, ko mai.
Gilashin rawar sojan yana da rami kuma yana da jiragen da za su ba da izinin fitar da ruwan hakowa, ko laka, a cikin sauri da matsa lamba don taimakawa wajen tsaftace bitar kuma, don sassauƙan tsari, suna taimakawa wajen wargaza dutsen.
Tricone drill bits: Tricone bit ya ƙunshi rollers conical guda uku tare da hakora waɗanda aka yi da wani abu mai wuya, kamar tungsten carbide. Haƙoran suna karya dutse ta hanyar murƙushewa yayin da abin nadi ya zagaya ƙasan rijiyar burtsatse.
PDC drill bits: PDC bit ba shi da sassa masu motsi kuma yana aiki ta hanyar goge saman dutsen tare da hakora masu siffa faifai waɗanda aka yi da slug na lu'u-lu'u na roba da aka haɗe zuwa silinda na tungsten carbide.