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API button drill bit IADC517 17 1/2″ (444.5mm)
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Pabrika ng API ng TCI tricone bit IADC617 5 5/8″ (142.9mm)
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API rotary tricone bit IADC617 6 ” (152mm) para sa well drilling
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Tricone rock bit IADC617 8 1/2″ (215.9mm) para sa well drilling
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Tagagawa ng API ng tricone rock bit IADC617 9 7/8 pulgada” (250mm)
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Pabrika ng API ng tricone roller bit IADC617 12 1/4 pulgada (311.1mm)
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Pabrika ng API ng mga rock drilling bits IADC617 17 1/2 pulgada (444.5mm) ang stock
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API tungsten carbide insert rock dill bit IADC627 3 7/8″ (98mm) sa stock
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Rotary roller bit IADC627 8 1/2″ (215mm/216mm)
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Roller cone drill biit IADC637 4 5/8″ (118mm)
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Tricone roller bit IADC637 4 3/4″ (120mm) para sa hard rock drilling
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Ball tooth tricone biit IADC637 5.5″ (140mm)