A cut opperation

Check out BRepAlgoAPI_Cut.

BTW - You might consider searching the help before posting a question.

I already check BRepAlgoAPI_Cut but it worked with TopoDS_Shapes but not with TopoDS_Solids

A TopoDS_Solid is derived from a TopoDS_Shape. BRepAlgoAPI_Cut is a general purpose routine. Just pass your solids and it will work fine (or at least as well as it works).

THANKS A LOT!!!!