I have been to Harbor Freight 3 times looking for blades. They have been out of them each time. I guess I am just destined to buy my blades at Wal-Mart. Though, I was told by someone in my guild that the blades are too thick to fit in the June Taylor ruler with all the slits in it...Shape and Cut, I think it is called. Maybe I am better off without them, as I use that ruler a lot. :)