A carver can start a cut to one depth, then change the angle of the cut by flexing the shaft. The Star Idea behind Flexcut tools   is the  high quality cutting edge combined with spring steel construction. FLEXCUT TOOLS were developed by the renowned Maritime Deep Relief carver, David Bennett.
A carver can start a cut to one depth, then change the angle of the cut by flexing the shaft  because these tools have the unique  ability to bend in the shank as hand pressure is applied.
Keep them sharp, stropping every twenty minutes of carving time to maintain their  great edge.