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API knop boor IADC517 17 1/2" (444.5mm)
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API fabryk fan TCI tricone bit IADC617 5 5/8 ″ (142.9mm)
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API rotary tricone bit IADC617 6 "(152mm) foar boarring
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Tricone rotsbit IADC617 8 1/2 ″ (215.9mm) foar boarring
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API-fabrikant fan tricone rock bit IADC617 9 7/8 inch” (250mm)
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API fabryk fan tricone roller bit IADC617 12 1/4 inch (311.1mm)
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API fabryk fan rotsboarringen IADC617 17 1/2 inch (444.5mm) op foarried
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API wolfraam carbid ynfoegje rots dille bit IADC627 3 7/8 "(98mm) op foarried
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Rotary roller bit IADC627 8 1/2" (215mm/216mm)
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Rollerkegelboor IADC637 4 5/8" (118mm)
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Tricone roller bit IADC637 4 3/4 "(120mm) foar hurde rotsboarring
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Baltand tricone biit IADC637 5.5" (140mm)