7 1/2inch Tricone Bit
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SUNGOOD TECH 7 1/2inch IADC 537 Tricone Drill Bit Rock Bit Tungsten Carbide Insert Drill Bit
Type: 7-1/2" IADC 537 tricone bit (190mm)
Thread: 4-1/2" API Regular Pin for intermediate section oil well and medium-diameter water well applications.
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