Pneumatic
machines

Hydraulic
machines

DTH
equipment

Rotary
equipment

Drag bit

Trilâme - stenuick

The drag bit is usually used in very soft to medium formation when the dth hammer or the rock bit, lose of their effectiveness.
The cleaning of the hole is realized by the injection of air or water.

There are two forms of drag bits:
- "Step" type for soft soils
- "Chevron" type for medium hard soils

Documentation

icone pdf