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  • 7 1/2

    7 1/2"GS1604 Excellent feedback

    PDC Drill bits GS1604 made by GREAT Drill Bits showed a very good result in rate of penetration (ROP) and footage. Drilling with a bit was stable. The bit drilled the footage by the manufacturer’s guarantied. BHA: Bit 190,5 mm (0,30 m) + Crossover (0,54 m) + D…

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