14 Inch Rock Reamer

we have two different type of 14inch rock reamers. one is having 4 pieces 7 7/8 inch IADC 637 metal sealing bit . It is having NC 31 thread on the shaft. another one is having 4 pieces 8 1/2 inch IADC 637 metal sealing bit . It is having NC31 thread on the shaft. Those are imported from China, ZLCONN made. we have ready stock of original adapters (D80,NC21 & NC38) for it to be fit in any suitable rig

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