Fairbarn-Sykes type combat dagger

grabcad

I tried to draw it as close to the original specs as possible, but as it was a killing-time project, I did not put too much attention to exact handgrip measures - just the two specified diameters, length and tang diameter mentioned by F-S, rest was drawn by hand. The rendered image is not the best, but at the moment was most I could think of. If I get any better idea, I'll change that.