I bought this to round paper cards. I was doing it by hand initially using a different punch but my hand would hurt so bad since I had so punch so many corners. I finally caved and bought this machine and IT IS SO AWESOME!!! I usually keep my stacks smaller, about 28 sheets of a lightweight cardstock, but I have cut twice as many just fine. It doesn't take much pressure and it very easy to use. It took me a sec to adjust since I was using a guide to size the cut but the bolts were easy to undo and adjust. Once I got it going I punched all the cards I had, a couple hundred, and was done in 30 mins. It is very sharp and I recommend to all those needing to cut many corners!