How can we not drill the rod and drill the rod?
Resolvent：1. Remove the drill pipe and remove the foreign objects.2, repair wear and deformation parts.3, open the drill rod, plastic alignment.4, adjust the operation method.
Common causes1. There is a foreign object between the sections of the drill pipe.2, pressure surface wear, curling.3. Bending or deformation of drill pipe.4, the drill scraping hole wall, machine lock rod part into the lock.5, inclined hole.
