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API TCI tricone rock bit IADC637 6 3/4″ (171.4mm)
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Tau o le mata u'amea API Tricone IADC637 8 1/2” (215.9mm)
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Mata vili fa'amau vili IADC617 12 1/4 inisi (311mm)
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O le kamupani gaosi vili API tricone IADC637 12 1/4” (311.1mm)
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Mata vili uamea ua fa'amaufa'ailogaina IADC637 14 3/4” (374.6mm) mo le vaieli loloto
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Matau kone e tolu IADC637 17 1/2” (444.5mm)
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O le kamupani sapalai o uʻamea Tricone IADC637 6.5 inisi (165mm) mo papa malō
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Mata u'amea fa'ata'avalevale IADC637 9 7/8” (250.8mm)
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O le fale gaosi API o le Roller cone bit IADC637 3 7/8″ (98mm) o loʻo iai i le faleoloa
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Kamupani e tu'uina atu u'amea fa'amau IADC637 7 7/8” (200mm)
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O u'amea papa API tricone IADC637 9 5/8” (244.5mm) o lo'o iai i le faleoloa.
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TCI tricone bit IADC617 6 1/2″ (165mm) mo le masini vili