You really don't need a cutter to cut down your sim as you simply can print out one of templates found online and do it free hand unless you have problems making a small cut along a line or want to do a bunch quickly. I bought it as my son wanted to use it thinking why risk damaging the sim when this is so inexpensive. I was expecting a flimsy product that might work okay if you aligned everything. What I received was a very sturdy precision cutter that was easy and foolproof. I think this could be used in a commercial capacity with no issues, sadly we only once and can't confirm that opinion.