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Ma Tricone Roller Bits IADC517 mainchesi 9.5 (241mm)
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Deep Well Tricone Bit IADC517 mainchesi 7 7/8 (200mm)
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Mabatani a TCI otsekedwa ndi miyala IADC517 6 1/2″ (165mm) obowolera zitsime
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Ma Tricone roller drill bits IADC517 6 1/4″ (159mm)
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Ma biti ozungulira a API otsekedwa ndi IADC517 5 1/4″ (133mm) alipo
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Bulu Lozungulira IADC537 3 7/8″ (98mm)
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Ma Tricone drill bits IADC537 4 3/4″ (120.6mm)
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API tricone drill bit IADC537 14 3/4″ (374mm) ya hard rock
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Chobowolera cha cone chobowolera IADC637 4 5/8″ (118mm)
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Ma Tricone Bits IADC537 4 5/8″ (118mm)
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API tricone rock bit IADC537 5 1/4″ (133mm)
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Chobowolera miyala cha API IADC537 5 1/2” (139.7 mm) cha chitsime cholimba