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Bit rolair tricone IADC637 4 3/4″ (120mm) airson drileadh creige cruaidh
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Bit tricone fiacail ball IADC637 5.5″ (140mm)
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Factaraidh API de TCI tricone biit IADC637 6 “(152.4mm) ann an stoc
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Bit creige tricone API TCI IADC637 6 3/4″ (171.4mm)
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Prìs bit API Tricone IADC637 8 1/2” (215.9mm)
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Drile putan rothlach IADC617 12 1/4 òirleach (311mm)
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Neach-dèanamh drilean tricone API IADC637 12 1/4” (311.1mm)
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Drileag meatailt ròinichte IADC637 14 3/4” (374.6mm) airson tobar domhainn
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Bit trì còn IADC637 17 1/2” (444.5mm)
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Solaraiche pìosan Tricone IADC637 6.5 òirleach (165mm) airson creig chruaidh
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Bìdean rolair rothlach IADC637 9 7/8” (250.8mm)
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Factaraidh API de bhit còn rolair IADC637 3 7/8″ (98mm) ann an stoc