Rama Mining Tools Wagon Drill comes in 2 variants. 1) Top Hammer version: Drilling up to 20-40 meter depth with hole dia of 48-76 mm. (With RMT 120F | BBC 120F Pneumatic Drifter) 2) DTH Hammer version: Drilling depth of 36.50 meters with hole dia of 102 to 114 mm. A vertically mounted pneumatic hammer drill and percussive-type rock drill supported on a three-wheeled wagon. https://www.rminingtools.com/mining-tools/wagon-drills