A module is for use in drilling a borehole in face of a mine passage using
a drilling element and installing a bolt in the borehole once formed. The
module may include a bolt holder for holding a plurality of bolts and a
drilling element holder for holding a plurality of different drilling
elements. A manipulator moves along an arcuate path between the bolt and
drilling element holders to deliver the respective components to a drill
head positioned along the arcuate path. The drill head may also slide
relative to the mast in two different directions, and includes a drill
guide for determining the location of the face to be worked. Related
aspects of control of the module and methods are disclosed.