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Mtengo wa Tricone bits IADC117 9 7/8 mainchesi (250mm)
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Gulani ma tricone bits IADC117 12 1/4 mainchesi (311mm)
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Opanga ma tricone bits IADC117 6 3/4 mainchesi (171mm)
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Ma tricone bits makonda IADC117 13 5/8 mainchesi (346mm)
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China bwino kubowola bits IADC117 17.5 mainchesi (444.5mm)
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Kubowola mutu IADC126 3 7/8 mainchesi (98.4mm) kwa thanthwe lolimba
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Othandizira a Milled Tooth Bits IADC126 mainchesi 4.5 (114mm)
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API kubowola bts fakitale IADC126 4 3/4 mainchesi (120mm)
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API ma cones atatu IADC126 4 5/8 mainchesi (118mm) pobowola bwino
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Tricone bits pobowola bwino mu stock IADC126 6inch (152mm)
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API Tricone kubowola pang'ono IADC126 9.5 mainchesi (241mm) zogulitsa
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Kubowola bwino fakitale IADC126 17 1/2 mainchesi (444.5mm)