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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)
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API guda uku cones bit IDC537 11 5/8"(295mm) don rijiya mai ƙarfi
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Juyawa uku-mazugi bit IDC537 12 1/4"(311mm)
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Ƙarfe da aka rufe Far Eastern dutse hako bit IDC537 13 5/8"(346mm)
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API tricone drill bit IDC537 14 3/4" (374mm) don dutse mai wuya