Screw-threaded displacement auger:

This patented displacement auger is extremely suited for drilling screw
piles with double soil displacement and a regular helical shape over the
entire pile length.

Continuous flight auger with screw-threaded casing:

Continuous flight auger with casing for the drilling of continuous flight
auger piles without soil displacement, with clearly formed and constant
helical shape over the entire pile length. Patented operating method.

Screw-toothed continuous flight auger without casing:

Continuous flight auger for the drilling of continuous flight auger piles
without casing, without soil displacement but with a helical shape over
the entire pile length. NEW CONCEPT !

Secant pile auger without casing:

Secant pile auger for the drilling of secant pile walls without casing using
small piling rigs and only one single rotary head.
NEW CONCEPT !