A surgical delivery system that has particular application for providing bone graft material to an interbody device that restores disc space height during spinal fusion surgery. The bone graft delivery system includes a body portion and a shaft coupled thereto. An auger extends through a bore in the shaft and into the body portion. An end of the shaft opposite to the body portion is configured to be coupled to the interbody device, where the auger extends through a channel in the interbody device. Bone graft material is placed in a hopper coupled to the shaft, where the auger is manually or automatically rotated to deliver the bone graft material through the shaft and into the interbody device where it is dispersed into the disc space.