The C.F.H. is a drilling system capable of drilling into non-cohesive soils without having to carry out the long and laborious procedures of traditional systems.
With this system can be drilled vertical, horizontal and sub-horizontal holes, with depths over 70 meters and the drilling is performed by the rotation of the continuous casing to which both the tool (tricone, tri-blade bit, clawbit, etc.) and the shoe are attached.
At the end of the drilling it is possible to extract the tool by means of a overshot that hooks to a patented mechanical system, thus making the hole free for the insertion of micropiles, tie rods, drainage pipes or other geognostic methods.
The C.F.H. contains many qualities such as: ease of use, drilling speed and quick tool change.
This system is available with diameters from 89 mm up to 355 mm, but, on request, they can also be produced in special sizes.