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Umhlinzeki wama-roller cones bits IADC216 5 5/8 inches (143mm)
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Amabhithi e-roller avaliwe i-IADC216 5 7/8inches (149mm)
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Amabhithi e-Tricone asesitokweni IADC216 6 3/4 amayintshi (171mm)
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I-Rotary dill bit IADC216 7 7/8 amayintshi (200mm)
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Umhlinzeki wama-Rotary bits IADC216 10 5/8 inches (269mm)
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Thenga ama-drilling bits IADC216 17.5″ (444.5mm)
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Intengo yama-bits e-API tricone drill IADC216 4 5/8 inches (118mm)
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Amabhithi e-tricone asemzimbeni ojulile i-IADC216 amasentimitha ayi-6 (152mm)
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I-Diamond tricone bit IADC216 7.5 inches (190mm)
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Ifektri yamabhithi eTricone IADC216 9 7/8inches (250.8mm)
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Ifektri ye-API drill bits IADC216 4.5 inches (114mm)
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Umhlinzeki wama-bits okubhoboza e-API i-IADC216 5 3/4 amayintshi (146mm)