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Ama-cones bits factory amathathu IADC217 3 7/8 amayintshi (98mm)
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I-Tricone bits IADC217 4.5 amayintshi (114mm) yokumba umthombo ojulile wedwala
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I-API evalwe nge-roller cone bit yokubhoboza i-IADC217 5 7/8 amayintshi (149.2mm)
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Izingcezu zokubhoboza ezijikelezayo IADC217 6 amayintshi (152mm)
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I-API egaywe izinyo izingcezu ezintathu ze-IADC217 7.5 amayintshi (190mm) esitokweni
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Izinyosi zezinyo zensimbi ze-API IADC217 8.5 amayintshi (215mm) zokumba amatshe
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Umhlinzeki wamabhithi we-API IADC217 8 3/4 amayintshi (222.2mm)
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Izingcezu zokumba umthombo ojulile IADC217 11 5/8 amayintshi (295.3mm) wetshe eliqinile
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I-API Mill tooth bits IADC217 12 1/4 amayintshi (311mm) yokubhoboza umthombo
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Amanani aphansi okumba amabhithi IADC217 14 3/4 amayintshi (374mm) wetshe eliqinile
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i-wholesale drilling bits IADC217 17.5 amayintshi (444.5mm)