This is my 4th one so far, I still have and use the other 3 daily. I own a vehicle registration business company in Las Vegas NV. We laminate our customers registration certificates and when we first started it left really sharp corners so I trimmed with scissors that didn't go very well it looked sloppy. I found plastic corner cutters next what a joke they are not meant for high volume. Eventually I found this one. WOW what a difference this is pro equipment. Make sure you keep it lubricated and it will last forever. I have also kinda gone OCD with trimming corners, we do all our paper, post it notes, fliers, business cards, and anything else I can find with a corner. We can easily do 3/4 inch at a time.Johneric StensrudDMV Made EasyLas Vegas, NV