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Drile API bts factaraidh IADC126 4 3/4 òirleach (120mm)
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API Trì cònaichean IADC126 4 5/8 òirleach (118mm) airson drileadh tobair
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Drileagan gnàthaichte API IADC126 5 1/4 òirleach (133mm) airson creig chruaidh
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Bìdean tricon airson drileadh tobair ann an stoc IADC126 6 òirlich (152mm)
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Drileag API Tricone IADC126 9.5 òirleach (241mm) ri reic
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Bit airson drileadh tobair IADC127 3 7/8″ òirleach (98.4mm)
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Neach-dèanamh bitan Tricone IADC127 4 9/16 òirleach (115.9mm)
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Drileadh tricone API IADC127 4 5/8 òirleach (118mm) ri reic
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Factaraidh bitan tricone IADC127 5 7/8 òirleach (149mm) airson drileadh tobair chruaidh
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Factaraidh pìosan seulaichte IADC127 6 òirlich (152mm)
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Pìosan drile ann an stoc IADC127 7 7/8 òirleach (200mm)
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Pìosan tricone lasaichte IADC127 9 5/8” (244.5mm)