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Customizedl bwino kubowola bits IADC127 14 3/4 ” (374mm)
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Yogulitsa tricone bits IADC127 17.5 mainchesi (444.5mm)
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Simenti pulagi kubowola bits IADC127 4 3/4 mainchesi (120mm)
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Pang'ono pobowola bwino IADC127 3 7/8″ mainchesi (98.4mm)
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API trione kubowola IADC127 4 5/8 mainchesi (118mm) zogulitsa
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Fakitale yosindikizidwa ya bits IADC127 6 mainchesi (152mm)
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Zobowola zakuya IADC127 12 1/4 ” (311mm)