Tungsten Carbide Hard Rock 8 1/2 Inch Iadc537 TCI Roller Tricone Rock Drill Bits Main Features 1. There is a Tricone suitable for any rock formation 2. Tricone bit is versatile and can handle changing ...View More
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8 1/2 Inch Iadc537 TCI Roller Tricone Rock Drill Bits Tungsten Carbide Hard Rock