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Amabhithi e-Tricone roller drill IADC517 6 1/4″ (159mm)
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Izingcezu zenkinobho yedwala evaliwe ye-TCI IADC517 6 1/2" (165mm) yokubhoboza umthombo
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I-TCI trione bit IADC517 7 1/2″ (190mm)
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I-Deep Well Tricone Bit IADC517 7 7/8 amayintshi (200mm)
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I-API Tricone Bit IADC517 8.5 amayintshi (215.90mm)
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I-API Tricone drilling bit IADC517 8 3/4 amayintshi (222mm) esitokweni
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I-Tricone Roller Bits IADC517 9.5 amayintshi (241mm)
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I-Rotary tricone Bits IADC517 9 7/8″ (250mm) yetshe eliqinile
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Izigaxa ezintathu ze-rock bit IADC517 10 5/8″ (269mm)
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I-Rotary rock bit IADC517 11 5/8″ (295mm)
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I-Rotary trione bit IADC517 12 1/4″ (311mm)
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Izigaxa ezintathu bit IADC517 13 5/8″ (346mm)