Print out in 10 minutes, insert a razor blade and flip.
Flipping ensures that the razor blade cannot jump out under any circumstances. Normal scalpels sometimes were not suitable for certain tasks. Especially if you need to apply a little more force while maintaining precision and the thinnest possible blade.
Typical application: Cutting through conductors. Separation of conductor tracks on circuit boards. Scraping away contact surfaces. Also suitable for carefully trimming the surfaces of prints.