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Babban gudun tungsten carbide drills IDC537 5 7/8 ″ (149mm)
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Tricone rock bits IDC537 6 inci (152.4 mm)
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Rotary tricone bit IDC537 6 1/4 inci (159 mm)
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TCI tricone rock bits IDC537 6 3/4" (171mm)
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Maɓallin API bit IDC537 inci 6.5 (165mm) tare da rangwamen farashi
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TCI dutse bit IDC537 7 1/2" (190 mm)
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API factory tricone bit IDC537 7 5/8" (193.7 mm)
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TCI tricone bit IDC537 7 7/8 inci (200 mm)
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Tungsten Carbide Saka Bit IDC537 8 1/2"(215.9mm)
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API button dutsen rawar soja bit IDC537 8 3/4"(222.2mm) tare da rangwamen farashi
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TCI rawar soja bit IDC537 9 1/2 "(241mm) don tudun dutsen mai
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API dutsin rijiyoyin hakowa IDC537 10 5/8 inci (269mm)