Used this for the first time and am really impressed. Very precise and fine. The blade is about the same thickness as an old shaving blade and is much thinner than a standard craft blade. I used it on plastic but it`s supposed to be good on resin also. I`ve seen it on ebay recently for 18 Euros inc.pp. A spare blade is included and I recommend it. I didn`t really know I needed it until I got it, so to speak.