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Inchi 4 1/4 PDC Drag Bit 3 Blades
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API rotary tricone bit IADC617 6 ” (152mm) yo gucukura amariba
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IADC617 ifite uburebure bwa 8 1/2″ (215.9mm) bwo gucukura amariba
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Uruganda rwa API rwa tricone rock bit IADC617 9 7/8 inches” (250mm)
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Uruganda rwa API rwa tricone roller bit IADC617 rufite santimetero 311.1 (12 1/4 mm)
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Uruganda rwa API rukora uduce two gucukura amabuye IADC617 dufite santimetero 444.5 mu bubiko
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API tungsten carbide insert rock dill bit IADC627 3 7/8″ (98mm) iri mu bubiko
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Agace k'urukiramende gakoresha icyuma kizunguruka IADC627 8 1/2″ (215mm/216mm)
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IADC637 ifite uburebure bwa 4 3/4″ (120mm) bwo gucukura amabuye akomeye
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Iryinyo ry'umupira rya tricone biit IADC637 5.5″ (140mm)
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Uruganda rwa API rwa TCI tricone biit IADC637 6 “(152.4mm) ruri mu bubiko
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API TCI tricone rock bit IADC637 6 3/4″ (171.4mm)