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Mea hoʻolako API o nā ʻāpana wili luawai pōhaku hohonu IADC537 9 5/8″(244.5mm)
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ʻO ka pihi API TCI IADC537 9 7/8″(250mm) no ka ʻeli ʻana i ka luawai pōhaku paʻakikī
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ʻO ka pihi Rotary Bit IADC537 3 7/8″ (98mm)
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Nā ʻāpana wili Tricone IADC537 4 3/4″ (120.6mm)
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ʻO ka ʻūlili tricone API IADC537 14 3/4″ (374mm) no ka pōhaku paʻakikī
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Nā ʻāpana Tricone IADC537 4 5/8″ (118mm)
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ʻO ka ʻāpana pōhaku tricone API IADC537 5 1/4″ (133mm)
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ʻO ka ʻūlili pōhaku API IADC537 5 1/2 ” (139.7 mm) no ka luawai paʻakikī
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Nā ʻāpana wili API IADC537 5 5/8″ (142.9mm)
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Nā ʻāpana wili tungsten carbide wikiwiki kiʻekiʻe IADC537 5 7/8″ (149mm)
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Nā ʻāpana pōhaku Tricone IADC537 6 ʻīniha (152.4 mm)
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ʻO ka ʻāpana tricone Rotary IADC537 6 1/4 ʻīniha (159 mm)