Sandvik DU311-T is a track mounted In-The-Hole drill designed to drill with ITH hammers powered with high air pressure.
Sandvik DU311-T can be used to drill from 3.5 in (89 mm) to 8.5 in (216 mm) diameter holes. Most applications allow the machine to drill to a depth greater than 330 ft (100 m). With additional air supply it can also be used for reaming up to 17.5 in (445 mm) diameter holes with a 12 in hammer for rapid raising.