Grapefruit knife

Grapefruit knife
The jagged edges on this knife come in handy for many garnishing tasks.
Hand grater ...

A grapefruit spoon has a serrated tip which helps the consumer to separate the fruit from the pith, and a grapefruit knife has a characteristic bent, serrated blade which can be wedged into the fruit.

See also: Knife, Grapefruit, Grape, Fruit, Juice