After purchasing several different cutters to cut chipboard, this was the only one that really did the trick - the cut is smooth and clean. I WAS using the Fiskars Procision rotary cutter but the cutter folds at the 5.5 - 6 inch mark and it was difficult to get a good cut at 5.5, 5.75 and 6 (the Cal Brand is 12 inches across with no folds). Chipboard also moved in the Fiskar cutter. The only negatives with the Carl Brand cutter are the lack of markings and difficulty cutting anything narrower than 3 inches. There are no 16th inch markings and only the inch and half inch marking go all the way up and down the cutter so if you are cutting an 8.25 by 8.25 chipboard piece you will be able to line it up on the bottom of the cutter but no where else. Huge flaw! Also there is a bar that holds the chipboard down making it easy to cut but that same bar makes it difficult to cut anything thinner than 3 inches.