7 1/2" PDC Diamond Bit , Steel Drill Bits IADC S323 4 1/2”API REG PIN With 5 Blades
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7 1/2" Steel Body PDC Bit , IADC S323 , 4 1/2” API REG.PIN , 5 Blades FS series Steel body PDC drill bit * Soft to medium hard formation drilling ...
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