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Wopereka API wa ma biti obowolera zitsime za miyala yozama IADC537 9 5/8″(244.5mm)
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Button bit ya API TCI IADC537 9 7/8″(250mm) yoboola zitsime zolimba za miyala
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Tricone rock bit IADC417 8 1/2″(215.9mm)
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Fakitale ya API ya TCI tricone bit IADC617 5 5/8″ (142.9mm)
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TCI tricone bit IADC417 17.5″(444.5mm)
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Chingwe chobowolera zitsime cha API IADC417 12 1/4″(311mm) cha miyala yolimba
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Fakitale ya API ya ma cones a miyala IADC437 8.5″ yobowola
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API tricone drill bit IADC437 6″(152mm) yobowola chitsime
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TCI tricone bit IADC447 mainchesi 8 1/2 (215.9mm)
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Chobowolera chozungulira IADC447 mainchesi 6.5 (165mm)
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Ma cones atatu a rock bit IADC517 10 5/8″ (269mm)
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Ma Rotary tricone Bits IADC517 9 7/8″ (250mm) a miyala yolimba