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Pìos drile putan API IADC517 17 1/2 ″ (444.5mm)
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Factaraidh API de bit TCI tricone IADC617 5 5/8 ″ (142.9mm)
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Bit tricone rothlach API IADC617 6 ”(152mm) airson drileadh gu math
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Pìos creige Tricone IADC617 8 1/2 ″ (215.9mm) airson drileadh math
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Dèanadair API de bit creige tricone IADC617 9 7/8 òirleach” (250mm)
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Factaraidh API de bit rolair tricone IADC617 12 1/4 òirleach (311.1mm)
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Factaraidh API de bhuillean drileadh creige IADC617 17 1/2 òirleach (444.5mm) ann an stoc
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API tungsten carbide cuir a-steach pìos dill creige IADC627 3 7/8 ″ (98mm) ann an stoc
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Pìos rolair rothlach IADC627 8 1/2 ″ (215mm / 216mm)
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Biit drile còn rolair IADC637 4 5/8 ″ (118mm)
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Pìos rolair Tricone IADC637 4 3/4 ″ (120mm) airson drileadh creige cruaidh
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Fiaclan ball tricone biit IADC637 5.5 ″ (140mm)