7 7 / 8 " (200mm) IADC 542 Carbide tooth tricone bit for oil and water well drilling 1.The strength and wear resistance of inserts are improve by using carbide inserts with high strengthand high wear ...View More
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7 7 / 8 " ( 200mm ) IADC 542 Tricone Drill Bit Carbide Tooth Tricone Bit