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The serrated edge really does chew through cardboard like butter, and I was shocked my four-year-old couldn't hurt himself with it. It even smooths the cut edge as you go, so no more paper cuts from his projects.

I bought this for my son's school project and was surprised how well it cuts through thick cardboard without any sharp edges left behind. The serrated blade really does stay safe on skin, which gives me peace of mind while he works.

My kid can finally help with my cardboard recycling projects without me worrying about fingers near a blade. The serrated steel cuts through pizza boxes so smoothly, and I love that it automatically rounds the cut edge to stop paper cuts.