Here is how to change the blade from Fiskars website:
http://www.fiskarscrafts.com/tools/4...structions.pdf
If you are having trouble, they have excellent customer service.
....if you need to ask a question, just click on our Live Help button, or if you have a broken tool, please call customer service at 1-866-348-5661 or drop us an email at:
[email protected]. ...............