I have the fiskar 45MM blade and cutter. I don't like the newer ones and think my cutter is getting older. Sometimes is a little rough at first. After I use and turn blade to other side, eventually it works just fine. Watch buying off brand blades, I have some that works worst than the old blade I am replacing. Those were sold on the shelf along with the fiskar blades. Now I only make sure they are fiskars.