My new tool for creasing card stock—works a treat! Although the process is explained simply enough in the steps above, actually fiddling with the correct alignment takes far, far longer than you might think. The crease has to be exactly in the right place to fold the cards square. Got there in the end though and sure beats creasing by hand. Certainly appreciate the versatility of these old machines—you can even die-cut and perforate if you ask it nicely!