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Tricone Roller Bits IADC517 9.5 santimetatra (241mm)
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Rotary tricone Bits IADC517 9 7/8″ (250mm) ho an'ny vato mafy
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Biby vatokely telo IADC517 10 5/8″ (269mm)
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Rotary rock bit IADC517 11 5/8″ (295mm)
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Rotary tricone bit IADC517 12 1/4″ (311mm)
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Biby kely telo IADC517 13 5/8″ (346mm)
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Biby fandavahana bokotra API IADC517 17 1/2″ (444.5mm)