With a robust, proven design and sturdy, long-lasting systems, the MD6290 is highly effective in a variety of environments, both in soft- and hard-rock applications. Offering 29 000 kg (63,934 lb) of bit load, the MD6290 has just the right amount of force, rotational torque 12 880 N•m (9,500 ft-lb) and on-board air (1,700 cfm) to achieve fast penetration rates and optimize drilling efficiency. Furthering the drill's performance and versatility is the exclusive patented Hammer/Tricone Pipe Rack that allows the drill to be converted between tricone drilling, for soft rock conditions, and DTH drilling, for hard rock conditions, in less than five minutes. Innovative technology is found throughout the MD6290, making it a highly efficient machine that delivers low cost of ownership. The MD6290 can accommodate multiple mast sizes: 8 m, 10 m, and 11 m.