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I-API TCI tricone rock bit IADC637 6 3/4″ (171.4mm)
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Ixabiso lebhithi ye-API Tricone IADC637 8 1/2 ”(215.9mm)
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I-Rotary button drill bit IADC617 12 1/4 intshi (311mm)
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Umenzi weebhithi ze-API ze-tricone drill IADC637 12 1/4 ” (311.1mm)
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I-drill bit etywiniweyo yesinyithi i-IADC637 14 3/4” (374.6mm) yomthombo onzulu
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Iikhowuni ezintathu zebhiti IADC637 17 1/2” (444.5mm)
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Umthengisi weebhithi zeTricone IADC637 6.5 intshi (165mm) zelitye eliqinileyo
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Iibhithi zerola ezijikelezayo IADC637 9 7/8 ” (250.8mm)
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Ifektri ye-API yeRoller cone bit IADC637 3 7/8″ (98mm) ikhona esitokhweni
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Umthengisi weebhithi zamaqhosha IADC637 7 7/8 ” (200mm)
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Iibhithi ze-API tricone rock IADC637 9 5/8 ” (244.5mm) zikho esitokhweni
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I-TCI tricone bit IADC617 6 1/2″ (165mm) yesixhobo sokugrumba