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Fakitale yonse ya zobowolera IADC127 mainchesi 6 1/4 (158.8mm)
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Wopereka ma Tricone bits IADC127 mainchesi 7.5 (190mm)
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Ma API rig drilling bits IADC127 mainchesi 8 1/2 (215mm) a miyala yolimba
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Ma Tricone bits alipo IADC127 mainchesi 8 3/4 (222mm)
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Zidutswa za mano a API mill zomwe zilipo IADC127 9.5 mainchesi (241mm)
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Zidutswa zobowola zitsime zozama IADC127 13 5/8 ” (346mm) zilipo
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Zidutswa zobowolera simenti IADC127 mainchesi 4 3/4 (120mm)
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Chidutswa chobowolera zitsime IADC127 mainchesi 3 7/8 (98.4mm)
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Wopanga ma Tricone bits IADC127 mainchesi 4 9/16 (115.9mm)
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Kuboola kwa API tricone IADC127 mainchesi 4 5/8 (118mm) kogulitsa
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Fakitale ya Tricone bits IADC127 mainchesi 5 7/8 (149mm) yoboola zitsime zolimba
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Fakitale ya sealed bits IADC127 mainchesi 6 (152mm)