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Mata vili API IADC537 5 5/8″ (142.9mm)
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Mata vili tungsten carbide saoasaoa maualuga IADC537 5 7/8″ (149mm)
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O mata'itusi papa Tricone IADC537 6 inisi (152.4 mm)
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Mata u'amea tricone fa'ata'amilo IADC537 6 1/4 inisi (159 mm)
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O matasele papa tricone TCI IADC537 6 3/4″ (171mm)
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Mata fa'amau API IADC537 6.5 inisi (165mm) ma le tau fa'aitiitiga
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TCI mata u'amea papa IADC537 7 1/2” (190 mm)
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u'amea tricone API gaosi oloa IADC537 7 5/8” (193.7 mm)
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TCI tricone bit IADC537 7 7/8 inisi (200 mm)
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Fa'aofi Mata u'amea Tungsten Carbide IADC537 8 1/2″(215.9mm)
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API button rock drill bit IADC537 8 3/4″(222.2mm) ma le tau fa'aitiitiga
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Mata vili TCI IADC537 9 1/2″(241mm) mo le lua suāuu papa malo