Drill through granite or hard-faced rock, or complete quarry drilling or secondary holes for blasting with our pneumatic rock drills. Rock drills are tough, versatile and dependable. They are lightweight tools for drilling holes for anchor bolts and small dowel hole drilling. This rock drill is 61 lbs., with ergonomic single-lever throttle controls for easy use. It can deliver up to 2,100 blows per minute (bpm) to get through the toughest materials, and you can choose among three drilling speeds.