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API Rotary wodzigudubuza kubowola pang'ono IADC517 4.5 mainchesi (114mm) mu katundu
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Button bit IADC517 118mm pobowola mwala wa geothermal.
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API fakitale ya rotary wodzigudubuza pang'ono IADC517 4 3/4″ (120mm)
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API rotary batani losindikizidwa bits IADC517 5 1/4 ″ (133mm) mu katundu
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Tungsten Carbide Ikani thanthwe pobowola pang'ono IADC517 5 7/8″ (149mm)
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API Bwino kubowola tricone pang'ono IADC517 6″ (152.4mm) zogulitsa
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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