What is a Drill Rod? - Definition from Trenchlesspedia
2020-5-8u2002·u2002What Does Drill Rod Mean? Drill rods are segments of stainless steel piping, which are joined together to form a drill string. The drill string connects the drilling rig at the surface to the drilling head at the tunnel face. It is used to provide rotational torque to the drilling head, as well as to supply drilling fluid from the surface to ...
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