What is the reason for the drill rod of a rock drill

The drill rod is the main component in a rock drill used for drilling holes in rocks. The drill rod serves as a conduit for the transmission of impact energy from the drill piston to the drill bit, and also for removal of debris from the borehole. It is therefore an essential component for the efficient operation of a rock drill. The quality of the drill rod, its hardness, and its level of wear resistance all play important roles in ensuring the effectiveness of the drilling operation.