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Umuvuduko mwinshi tungsten karbide drill bits IADC537 5 7/8 ″ (149mm)
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Urutare rwa Tricone bits IADC537 santimetero 6 (152.4 mm)
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Rotary tricone bit IADC537 6 1/4 santimetero (159 mm)
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TCI tricone urutare bits IADC537 6 3/4 ″ (171mm)
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API buto bit IADC537 6.5 santimetero (165mm) hamwe nigiciro cyagabanijwe
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TCI urutare biti IADC537 7 1/2 ”(190 mm)
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Uruganda rwa API tricone bit IADC537 7 5/8 ”(193.7 mm)
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TCI tricone bit IADC537 7 7/8 santimetero (200 mm)
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Tungsten Carbide Shyiramo Bit IADC537 8 1/2 ″ (215.9mm)
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API buto ya rock drill bit IADC537 8 3/4 ″ (222.2mm) hamwe nigiciro cyagabanijwe
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TCI drill bit IADC537 9 1/2 ″ (241mm) kumavuta ya peteroli
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API urutare neza gucukura bits IADC537 10 5/8 santimetero (269mm)