I’m not sure why but I really don’t like knives with blades that are shorter than their handles.
Today’s invention is a knife which folds up safely but which, when deployed, has a blade longer than the gripping section.
The blade (black) is held to the handle/sheath (green) using a strong butterfly nut and bolt through both of them (red).
To stow the knife, undo the bolt, rotate the blade to fit inside the handle/sheath and replace the bolt.