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Iyara giga tungsten carbide lu awọn die-die IDC537 5 7/8 ″ (149mm)
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Tricone rock bits IDC537 6 inches (152.4 mm)
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Rotari tricone bit IDC537 6 1/4 inches (159 mm)
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TCI tricone apata die-die IDC537 6 3/4 ″ (171mm)
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API bọtini bit IDC537 6,5 inches (165mm) pẹlu ẹdinwo owo
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TCI apata 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 inches (200 mm)
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Tungsten Carbide Fi Bit IDC537 sii 8 1/2 ″(215.9mm)
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API Bọtini apata lu bit IDC537 8 3/4″(222.2mm) pẹlu idiyele ẹdinwo
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TCI lu bit IAC537 9 1/2 ″(241mm) fun epo-lile apata
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API apata liluho daradara die-die IDC537 10 5/8 inches (269mm)