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Mea hana tricone bits IADC127 4 9/16 iniha (115.9mm)
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ʻO Tricone bits factory IADC127 5 7/8 iniha (149mm) no ka wili luawai paakiki
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ʻO ka hale hana pahu drill bit IADC127 6 1/4 iniha (158.8mm)
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Mea hoʻolako ʻo Tricone bits IADC127 7.5 iniha (190mm)
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Nā ʻāpana wili i loko o ka waihona IADC127 7 7/8 iniha (200mm)
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API rig drill bits IADC127 8 1/2 iniha (215mm) no ka pohaku paakiki
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Nā ʻāpana Tricone i ka waihona IADC127 8 3/4 iniha (222mm)
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Nā ʻāpana niho wili palaoa API ma ka waihona IADC127 9.5 iniha (241mm)
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Hoʻemi i nā ʻāpana tricone IADC127 9 5/8 ” (244.5mm)
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Ke poʻo kaʻa no ka rig IADC127 9 7/8 ” (250.8mm)
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3 mau ʻāpana huila cones IADC127 11 5/8 ” (295mm)
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Nā ʻāpana wili luawai hohonu IADC127 13 5/8 ” (346mm) i ka waihona