Granted, it takes some practice to advance the blade, but eventually it runs automatically.
But one has a very robust Scheidwerzeug where also some mass behind it. The blade keeps safe because you can not inadvertently verletzen.Da is no plastic, which can sometimes break off quickly.
If you want to use it only briefly, it is a bit slower than normal cutter knife. Irdenwo but you have to cut back, a panacea, there are unfortunately only rarely.
