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API Rotary roller drill bit IADC517 4.5 inihi (114mm) kei roto i nga taonga
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Patene bit IADC517 118mm mo te keri toka puna waiariki.
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wheketere API o te moka roera hurihuri IADC517 4 3/4″ (120mm)
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Patene hurihuri API moka kua hiri IADC517 5 1/4″ (133mm) kei roto i nga taonga
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Tungsten Carbide Whakauru moka keri toka IADC517 5 7/8″ (149mm)
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API pai keri tricone bit IADC517 6″(152.4mm) hei hoko
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Paraka poro porotaka Tricone IADC517 6 1/4″ (159mm)
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TCI moka patene toka hiri IADC517 6 1/2″ (165mm) mo te keri poka
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TCI tricone bit IADC517 7 1/2″ (190mm)
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Poka Tricone Hohonu IADC517 7 7/8 inihi (200mm)
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Moka Tricone API IADC517 8.5 inihi (215.90mm)
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moka keri API Tricone IADC517 8 3/4 inihi (222mm) kei roto i nga taonga