Our drill rods are made from the same steels as Sandvik 64 bar, produced by CNC machine and advanced heat treatment. Besides, in order to make sure that the MF drill rod has a long lifespan, we use friction welding technology to connect the rod boy and female thread, which can make sure the female thread not be damaged easily.

See more: https://www.agdrill.com/Threaded-Drill-Rod-p.html