It changes the small pocket knives, so we are more on the format of a cutteur a fact that knife. The quality of finish is excellent, the object is very qualitative (even if it is on a semi-industrial product), sharpening box output requires no criticism, to see on the length. As I intend to use as cut paper (very abrasive for knives) I'll definitely have to sharpen it regularly, I see. In any case it is so fine that for now I use it as bookmark in my book, it said. So for the price gun, it's a great little companion will certainly follow me everywhere.