This is a 9-pound to 15-pound powered rock or ground drill placed on top of a feed. The feed is like a rail that the drill travels on, or drifts. This kind of drilling procedure is also called drifting. The feed is usually attached with a flexible boom (like an arm) to a stationary or mobile unit that contains the powerpack. This rock drill or drifter is usually a machine that consists of a percussive system and a rotative system. This tool can be used for either wet or dry drilling and are built according to the high standards.