Threaded rod is a fastening bar or a rod threaded along its length. Thread direction is an important specification to consider. Choices include right hand, left hand, or both right hand and left hand.

D36X50DR Series ll features a rod-in-rod design that provides 1,500 ft.-lb. of rotational torque. As the inner rod powers the downhole tri-cone, the outer rod provides steering and backreaming ...