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Djippeboarringsbits IADC127 13 5/8 "(346mm) op foarried
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Oanpaste boarringsbits IADC127 14 3/4 "(374mm)
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Groothandel tricone bits IADC127 17.5 inch (444.5mm)
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Tricone rock bits IADC137 6 inch (152mm) foar boarring
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API tricone drilling bit IADC215 8.5 inch (215.9mm) te keap
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API Tricone rotsbits IADC215 12 1/4 "(311mm) mei koarting
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API drill bits fabryk IADC216 4.5 inch (114mm)
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Roller cones bits leveransier IADC216 5 5/8 inch (143mm)
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Fersegele rollerbits IADC216 5 7/8 inch (149mm)
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Frezen tandbits IADC216 6,5 inch (165 mm) foar boarring
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Tricone bits in stock IADC216 6 3/4 inch (171mm)
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API tricone drilling IADC216 7 5/8 inch (194mm) foar oalje rig