It is the basic carpenter’s tool. To smooth boards up to 50 mm, produce rebatings, shutters, etc.…
The model with 4 knives has 2 knives placed helically, which improve both the cut and the fluidity of the working, as well as 2 straight knives, which enable to obtain a wooden piece perfectly levelled.
Screws are placed in an area not subject to the accumulation of wood chips, therefore they do not ruin themselves and can be dismantled for a long time.