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Tricone roller kubowola bits IADC517 6 1/4 ″ (159mm)
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TCI losindikizidwa thanthwe mabatani IADC517 6 1/2 ″ (165mm) pobowola bwino
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TCI trione pang'ono IADC517 7 1/2″ (190mm)
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Deep Well Tricone Bit IADC517 7 7/8 mainchesi (200mm)
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API Tricone Bit IADC517 8.5 mainchesi (215.90mm)
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API Tricone kubowola pang'ono IADC517 8 3/4 mainchesi (222mm) mu katundu
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Tricone Roller Bits IADC517 9.5 mainchesi (241mm)
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Rotary tricone Bits IADC517 9 7/8″ (250mm) ya thanthwe lolimba
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Ma cones atatu rock bit IADC517 10 5/8″ (269mm)
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Rotary rock bit IADC517 11 5/8″ (295mm)
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Rotary tricone bit IADC517 12 1/4″ (311mm)
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Ma cones atatu bit IADC517 13 5/8″ (346mm)