Abstract: An instrument for inserting a bone graft, wherein the bone graft is of a substantially cylindrical configuration and is extremely threaded. The graft is clampingly held at one end of an elongated instrument which securely holds the graft and permits it to be threadably inserted into a previously prepared intervertebral bed. After the graft has been properly inserted into the bed, the instrument can be manually released from the graft.The instrument for inserting the graft includes an elongated handle, and a control rod extends coaxially through the handle and is rotatably and threadably coupled thereto. The control rod at the lower end thereof has a part which projects outwardly from the handle and releasably grippingly engages the implant.