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3 7/8 inch IADC537 TCI Tricone Bit
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4 1/2 inch IADC537 TCI Tricone Bit
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4 3/4 Inch IADC637 TCI Tricone Bit
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4 5/8 Inch IADC637 TCI Tricone Bit
IADC637
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4 3/4 Inch IADC537 TCI Tricone Bit
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5 1/4 inch IADC537 TCI Tricone Bit
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5 5/8 Inch IADC537 TCI Tricone Bit
IADC537
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6 1/8 Inch IADC627 TCI Tricone Bit
IADC627
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6 1/4 Inch IADC537 TCI Tricone Bit
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6 inch IADC537 TCI Tricone Bit
IADC537
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6 Inch IADC637 TCI Tricone Bit
IADC637
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6 1/2 Inch IADC537 TCI Tricone Bit
IADC537