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Tricone Roller Bits IDC517 9.5 inches (241mm)
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Rotari tricone Bits IAC517 9 7/8" (250mm) fun apata lile
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Awọn cones mẹta apata bit IDC517 10 5/8 ″ (269mm)
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Rotari apata bit IDC517 11 5/8 ″ (295mm)
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Rotari tricone bit IDC517 12 1/4 ″ (311mm)
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Awọn cones mẹta die-die IDC517 13 5/8 ″ (346mm)
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Bọtini API lu bit IDC517 17 1/2 ″ (444.5mm)