There is described an instrument set for use in spinal surgery that includes as elements a spinal body spacer, a placement tool, and an extraction tool. The spinal body spacer has a threaded opening and keyways connected to the threaded opening. The spacer may have an outer face positioned around the opening and the placement tool may have a contact face that comes into contact with the outer face when the placement tool is fully connected with the spacer. The extraction tool has a tip configured to pass through the opening of the spacer.
