Sheesh. ...talk about not seeing the forest for the trees
Yes, it's a screwdriver. No, it wasn't permanent. This photograph was taken over the passed weekend. The screwdriver has since been replaced with a shaft.
Yes, the frame was milled on a CNC mill. It was milled as a flat sheet, save for any critical alignment holes, then it was bent. After it was bent, all holes that were critical for alignment between the two halves were drilled.