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9 1/4" Steel na ngipin na may 3 blades

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8 5/8" Steel ngipin na may 3 blades

tingnan pa

12 1/4" TRICONE BIT IADC114/117/127/217/37

IADC114/117/127/217/37

tingnan pa

16" PDC bit na may 5 blades

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17 1/2" PDC bit na may 5 blades

tingnan pa

17 1/2" TRICONE BIT IADC114/117/127/217/317

IADC114/117/127/217/37

tingnan pa