A system for preparing a bone implant includes a chisel and a cutting guide. The chisel includes a handle includes an elongate body having a distal end and a proximal end. A chisel head is connected to the distal end of the handle. The chisel head includes a stop and a blade distally extending from the stop. The stop defines a notch. A mushroom head radially extends from the proximal end of the handle. The cutting guide has a body defining a cavity and a plurality of slots. The cavity is sized and configured to receive a bone implant. The plurality of slots are each sized and configured to receive the blade of the chisel.
