A fluting knife can be used for a multitude of things, but one of the major things is v-shaped cutting. The knife its self is in a sort of triangle shape so it makes sense that it would specialize in v-cuts. You can make a fruit bowl out of a large melon by cutting v shapes around the edges.
The fluting knife can be used to make a v-cut design in a lemon and can be used as a garnish along side a dish do make the plate look more appealing.
