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Uduce twa TCI tricone rock IADC537 6 3/4″ (171mm)
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IADC537 ifite uburebure bwa santimetero 165 (165mm) kandi ifite igiciro cyagabanijwe
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IADC537 7 1/2” (190 mm) ya TCI rock bit
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IADC537 7 5/8” (193.7 mm) y'uruganda rwa API tricone
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IADC537 ya TCI tricone bit ifite santimetero 200 (200 mm)
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Icyitonderwa cya Tungsten Carbide IADC537 8 1/2″ (215.9mm)
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IADC537 8 3/4″ (222.2mm) ifite igiciro cyagabanijwe
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IADC537 9 1/2″ (241mm) yo gukoresha mu icupa rikomeye ry'amavuta
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Uduce two gucukura amazi y'urutare rwa API IADC537 santimetero 269 (269mm)
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API ifite uduce dutatu twa cones IADC537 11 5/8″ (295mm) kugira ngo ikoreshwe neza
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IADC537 ifite agace ka tri-cone gazenguruka 12 1/4″ (311mm)
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Igice cyo gucukura amabuye cyo mu Burasirazuba bwa Far Eastern IADC537 13 5/8″(346mm)