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Ffatri API o TCI tricone biit IADC637 6 “(152.4mm) mewn stoc
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API TCI darn roc tricone IADC637 6 3/4″ (171.4mm)
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Pris did API Tricone IADC637 8 1/2 ” (215.9mm)
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Bit dril botwm Rotari IADC617 12 1/4 modfedd (311mm)
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Gwneuthurwr darnau dril API tricone IADC637 12 1/4 ” (311.1mm)
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Bit dril wedi'i selio â metel IADC637 14 3/4 ” (374.6mm) ar gyfer ffynnon ddwfn
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Did tri chôn IADC637 17 1/2 ” (444.5mm)
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Cyflenwr darnau Tricone IADC637 6.5 modfedd (165mm) ar gyfer craig galed
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Darnau rholer cylchdro IADC637 9 7/8 ” (250.8mm)
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Did tricone TCI IADC417 17.5″(444.5mm)
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Darn roc tricôn IADC417 8 1/2″(215.9mm)
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Did tricone TCI IADC447 8 1/2 modfedd (215.9mm)