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Tricone Roller Bits IADC517 9.5 inch (241mm)
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Rotary tricone bits IADC517 9 7/8 ″ (250mm) foar hurde rock
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Trije kegels rotsbit IADC517 10 5/8" (269mm)
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Rotary rotsbit IADC517 11 5/8" (295mm)
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Rotary tricone bit IADC517 12 1/4" (311mm)
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Trije kegelbit IADC517 13 5/8" (346mm)
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API knop boor IADC517 17 1/2" (444.5mm)