a sharp plain blade would do better

by bj2, Sunday, June 01, 2014, 19:39 (3770 days ago) @ stonewalrus

(I have a Leatherman Charge which is similar to the Wave.)

The advantage to the Leatherman is that the blade is relatively thin which helps it go through cardboard. But a sharp plane blade will "push cut" cardboard and doesn't need to be sliced (sawing action). In other words it just goes straight through the cardboard only touching one point on the blade. The people that do knife tests on the internet tell me that a good high end steel can cut several hundred feet of cardboard without becoming completely dull.

Check out this video for some cardboard cutting. The knife that he is using has probably the best stainless steel you can get in a production or custom knife at this time:

https://www.youtube.com/watch?v=iY5g93EJcuU

Now once a blade becomes a little dull, the serrations will still cut well. I remember when I was a kid I would always go into the kitchen and grab an old steak knife when I needed to cut some cardboard.