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API knop boor IADC517 17 1/2" (444.5mm)
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Stalen tandbits IADC117 3 7/8 inch (98,4 mm)
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API-boarringkop IADC117 4 5/8 inch (117,5 mm) foar rig
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API tricone bits leveransier IADC117 5 7/8 inch (149mm)
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API Tricone drill bits IADC111 15.5 inch (394mm) op foarried
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API drill bits leveransier IADC117 8 3/4 inch (222mm) foar boarring
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API gemalen tooth tricone drill bits IADC114 12 1/4 "(311mm)
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Tricone drill bits IADC117 7.5 inch (190mm) foar hurde rock goed
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Tricone rotsbits IADC117 7 7/8 inch (200mm)
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API fabryk fan stielen tosk tricone bits IADC117 6 inch (152mm)
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API Rotary roller bits IADC117 9,5 inch (241mm) op foarried
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API fabryk fan tricone rock drill bits IADC117 8 1/2 inch (216mm)