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Imboni yokumba i-rig bit i-IADC126 17 1/2 amayintshi (444.5mm)
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I-Tricone bit factory IADC126 26 amayintshi (660mm)
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Umkhiqizi wamabhithi e-Tricone IADC127 4 9/16 amayintshi (115.9mm)
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I-Tricone bits factory i-IADC127 5 7/8 amayintshi (149mm) yokumba umthombo oqinile
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Ifekthri yama-drill bits i-IADC127 6 1/4 amayintshi (158.8mm)
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Umhlinzeki we-Tricone bits IADC127 7.5 amayintshi (190mm)
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Izingcezu zokubhoboza esitokweni IADC127 7 7/8 amayintshi (200mm)
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I-API rig drilling bits IADC127 8 1/2 amayintshi (215mm) yetshe eliqinile
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Amabhithi e-Tricone esitokisini IADC127 8 3/4 amayintshi (222mm)
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Izingcezu zezinyo ze-API esitokweni IADC127 9.5 amayintshi (241mm)
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Amabhithi esaphulelo se-tricone IADC127 9 5/8 ” (244.5mm)
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Ikhanda elizungezayo le-IADC127 9 7/8 ” (250.8mm)