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API Mill mano bits IADC217 12 1/4 mainchesi (311mm) pobowola bwino
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Kubowola mitengo yotsika IADC217 14 3/4 mainchesi (374mm) pamiyala yolimba
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yogulitsa pobowola zidutswa IADC217 17.5 mainchesi (444.5mm)
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4 1/4 mainchesi PDC Kokani Bit 3 Blades
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API fakitale ya TCI trione pang'ono IADC617 5 5/8″ (142.9mm)
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API rotary trione pang'ono IADC617 6 ” (152mm) pobowola bwino
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Tricone rock bit IADC617 8 1/2 ″ (215.9mm) pobowola bwino
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API wopanga trione rock bit IADC617 9 7/8 mainchesi” (250mm)
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API fakitale ya trione wodzigudubuza pang'ono IADC617 12 1/4 mainchesi (311.1mm)
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Fakitale ya API yobowola miyala IADC617 17 1/2 mainchesi (444.5mm) ili m'gulu
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API tungsten carbide amaika mwala katsabola pang'ono IADC627 3 7/8″ (98mm) mu katundu
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Rotary wodzigudubuza pang'ono IADC627 8 1/2 ″ (215mm/216mm)