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Rollerkegelboor IADC637 4 5/8" (118mm)
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Tricone roller bit IADC637 4 3/4 "(120mm) foar hurde rotsboarring
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Baltand tricone biit IADC637 5.5" (140mm)
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API fabryk fan TCI tricone biit IADC637 6 "(152.4mm) op foarried
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API TCI tricone rotsbit IADC637 6 3/4" (171.4mm)
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API Tricone bit priis IADC637 8 1/2 "(215.9mm)
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Draaiknop boor IADC617 12 1/4 inch (311mm)
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API tricone drill bits fabrikant IADC637 12 1/4 "(311.1mm)
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Metalen ôfsletten boar IADC637 14 3/4 "(374.6mm) foar djippe put
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Trije kegelbit IADC637 17 1/2 "(444.5mm)
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Tricone bits leveransier IADC637 6,5 inches (165mm) foar hurde rock
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Rotary roller bits IADC637 9 7/8 "(250.8mm)