I use this product to cut my vinyl off the roll when done cutting on my machine.
Simple helpful tool that helps speed along the install process. Dulls quickly, but affordable
I went without a slitter for awhile, and finally ordered more. They are so much easier and better to use than an xacto blade!
I stopped using it - it snags on the edge, and as much hassle as using an Xacto may be, I have better control with the knife than this.
Even works on coroplast, cutting with the flutes. (cutting one side at a time) not bad for $.99!