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4 1/2 Inches PDC Drag Bit 3 Blades for oilwelll drilling
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API factory of 8.5 inches roller cutter IADC617 for HDD driling
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Rotary Button Bit IADC537 3 7/8″ (98mm)
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Tricone Bits IADC537 4 5/8″ (118mm)
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Tricone drill bits IADC537 4 3/4″ (120.6mm)
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API tricone rock bit IADC537 5 1/4″ (133mm)
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API rock drill bit IADC537 5 1/2 ” (139.7 mm) for hard well
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API drill bits IADC537 5 5/8″ (142.9mm)
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High speed tungsten carbide drill bits IADC537 5 7/8″ (149mm)
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Tricone rock bits IADC537 6 inches (152.4 mm)
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Rotary tricone bit IADC537 6 1/4 inches (159 mm)
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TCI tricone rock bits IADC537 6 3/4″ (171mm)