One modern, rotary, drill rig on crawlers, type Mustang 9-H5, suitable for core boreholes as well as for destructive drillings for instruments application. It is possible to execute boreholes using down the-hole hammer of 15” max diameter and 9t lifting capacity. The drilling machine can drill in any direction and, using the “symmetrix” system, can execute drillings in “difficult” soil conditions with simultaneous casing.