The cutter is very stable and locked properly. These plastic knives are against the so pure joke. Here you can sometimes rough go with the tool to the point without having to be afraid that the blade breaks his back through the plastic of the holder. Although the knife times stuck and pulling it out again, pulling not equal the entire blade from the holder.
I highly recommend this small and stable tool to anyone who carries out not only tinkering with small paper on the desk. And even then this cutter is a worthwhile alternative to the cheap plastic knife.