Outstanding Drilling Performance The advanced design of the boom and hydraulic system assures exceptional versatility and high performance for handling all types of drilling operations. Road construction, dam work, open area drilling, open-pit mining, quarrying operations, tunneling, and other drilling operations are all performed with unprecedented efficiency. Borehole Diameter : 89-165mm / 3.5-6.5 inch Average Speed : 1 drill rod / 3 minutes
