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Poʻo wili luawai IADC126 3 7/8 iniha (98.4mm) no ka pōhaku paʻa
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Mea hoʻolako i nā ʻāpana niho Milled IADC126 4.5 iniha (114mm)
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API drill bts factory IADC126 4 3/4 iniha (120mm)
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API ʻEkolu mau pahu cones IADC126 4 5/8 iniha (118mm) no ka wili luawai.
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ʻO nā ʻāpana Tricone no ka ʻeli ʻana i ka pūnāwai i ka waihona IADC126 6 iniha (152mm)
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API Tricone drill bit IADC126 9.5 iniha (241mm) no ke kuai
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hale hana wili wili luawai IADC126 17 1/2 iniha (444.5mm)
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ʻO Tricone bit factory IADC126 26 iniha (660mm)
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API no nā ʻāpana drill i hoʻopilikino ʻia IADC126 5 1/4 iniha (133mm) no ka pōhaku paʻa.
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Poʻo wili luawai API IADC126 7 1/2 iniha (190.5mm)
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ʻO ka drill bearing sila bts IADC126 9 7/8 iniha (250mm)
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Mea hoʻolako i nā bits drill Tricone IADC126 12 1/4 iniha (311mm) no ka wili luawai