5-7/8" × 7" × 4-½ " PDC Bit Centre Bit type hole enlarger for Medium to Medium Hard formation, ,IADC Code: M333 Product Description 1,5-7/8" × 7" × 4-½ " PDC Bit Centre Bit type hole enlarger for ...View More
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5-7/8" × 7" × 4-½ " PDC Centre Bit Type Hole Enlarger Tricone Drill Bit For Hard Formation