A repotting sickle is used to cut around the inside edge of a bonsai pot to remove a bonsai that has tightly grown into its container. The Kaneshin repotting sickle is one piece. The handle is part of the whole design. Its made of metal so it will not rot and become loose like some of the wood handled sickles.
For basic usage and tips on how to care for your bonsai tools please visit this link. Bonsai Tools & How to Care for Them