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I-API rotary tricone bit IADC617 6 ” (152mm) yokugrumba imithombo
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I-Tricone rock bit IADC617 8 1/2″ (215.9mm) yokugrumba imithombo
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Umenzi we-API we-tricone rock bit IADC617 9 7/8 intshi” (250mm)
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Ifektri ye-API ye-tricone roller bit IADC617 12 1/4 intshi (311.1mm)
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I-API yefektri yeebhithi zokubhola amatye i-IADC617 17 1/2 intshi (444.5mm) ikhona esitokhweni
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I-TCI tricone bit IADC617 6 1/2″ (165mm) yesixhobo sokugrumba
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Ifektri ye-API ye-TCI tricone bit IADC617 5 5/8″ (142.9mm)