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Vijiti vya kuchimba visima vya tricone IADC517 6 1/4″ (159mm)
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TCI biti za vitufe vya mwamba vilivyofungwa IADC517 6 1/2" (165mm) kwa kuchimba visima
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TCI trione biti IADC517 7 1/2″ (190mm)
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Kina Kirefu cha Tricone Bit IADC517 inchi 7 7/8 (200mm)
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API Tricone Bit IADC517 inchi 8.5 (215.90mm)
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API Tricone kuchimba kidogo IADC517 8 3/4 inchi (222mm) katika hisa
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Tricone Roller Bits IADC517 inchi 9.5 (241mm)
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Rotary tricone Bits IADC517 9 7/8″ (250mm) kwa mwamba mgumu
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Koni tatu za rock bit IADC517 10 5/8″ (269mm)
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Rotary rock bit IADC517 11 5/8″ (295mm)
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Rotary trione bit IADC517 12 1/4″ (311mm)
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Koni tatu biti IADC517 13 5/8″ (346mm)