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Sealed bearing drill bts IADC126 9 7/8 inches (250mm)
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Tricone drill bits supplier IADC126 12 1/4 inches (311mm) for well drilling
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Bit for well drilling IADC127 3 7/8″ inches (98.4mm)
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API tricone drilling IADC127 4 5/8 inches (118mm) for sale
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Sealed bits factory IADC127 6 inches (152mm)
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Deep well drilling bits IADC127 12 1/4 ” (311mm)
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Diamond tricone bit IADC216 7.5 inches (190mm)
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Tricone bits factory IADC216 9 7/8inches (250.8mm)