Disc type center cutter for a boring machine

Discontinuous advance device for boring continuous cutting...

Dividing cutting machine

Dividing cutting machine

Dividing cutting machine having means for rotating the jib arm

Door arrangement for a tunneling machine

Double-plate control device

Down reaming apparatus

Drill slide for rock drilling apparatus

Drilling and bolting apparatus for tunnelling and tunnel...

Drilling and bolting head for bolting machine

Drilling and bolting turret, with associated bolt magazine

Drilling apparatus

Drilling apparatus and method for its control

Drilling device

Drive shield for tunnelling apparatus

Dual mechanical and resin anchor bolt

Dynamic earth anchor, and a sleeve therefor

Dynamic rock stabilizing fixture