The type of rock drill is mainly used for rock extracting. There are mainly no rock drills, but the heavy equipment needed to extract large quantities of rock, such as ore, sand.
Manual rock drills come in three types. The most common type of rock drill is the hand-rock rock drills, which are in terms of the type of rock drill they are made of. Both hand rock drills and hand rock drills are the most commonly used types of rock drills.