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API drill bts factory IADC126 4 3/4 inches (120mm)
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API Mabhiti matatu emakoni IADC126 ane 4 5/8 inches (118mm) ekuboorera tsime
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Zvidhinha zvekushandisa zvakagadzirwa neAPI IADC126 5 1/4 inches (133mm) zvedombo rakaoma
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Zvidimbu zveTricone zvekuboorera tsime zviri mustock IADC126 6inches (152mm)
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API Tricone drill bit IADC126 9.5 inches (241mm) iri kutengeswa
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Chidimbu chekuboorera tsime IADC127 3 7/8″ inches (98.4mm)
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Mugadziri weTricone bits IADC127 4 9/16 inches (115.9mm)
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API tricone drilling IADC127 4 5/8 inches (118mm) iri kutengeswa
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Chigadzirwa cheTricone bits IADC127 5 7/8 inches (149mm) chekuchera matsime akaomarara
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Fekitori yezvidimbu zvakavharirwa IADC127 6 inches (152mm)
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Zvidimbu zvekuboorera zviripo IADC127 7 7/8 inches (200mm)
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Zvidimbu zvetricone zvakaderedzwa mutengo IADC127 9 5/8 ” (244.5mm)