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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)
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Inkinobho ye-API drill bit IADC517 17 1/2″ (444.5mm)