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Tricone Roller Bits IADC517 9.5 santimetatra (241mm)
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Bit Tricone Lalina IADC517 7 7/8 santimetatra (200mm)
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Bits bokotra vato voaisy tombo-kase TCI IADC517 6 1/2″ (165mm) ho an'ny fandavahana lavadrano
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Fandavahana Tricone IADC517 6 1/4″ (159mm)
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Bits API misy tombo-kase mihodina IADC517 5 1/4″ (133mm) misy ao amin'ny tahiry
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Bibikely mihodina IADC537 3 7/8″ (98mm)
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Bibikely fandavahana Tricone IADC537 4 3/4″ (120.6mm)
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Fandavahana API tricone IADC537 14 3/4″ (374mm) ho an'ny vatolampy mafy
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Fandavahana kônina mihodina biit IADC637 4 5/8″ (118mm)
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Bitika Tricone IADC537 4 5/8″ (118mm)
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API tricone rock bit IADC537 5 1/4″ (133mm)
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Fandavahana vatolampy API IADC537 5 1/2” (139.7 mm) ho an'ny lavadrano mafy