The Sun-Star Kadomaru Pro Corner Cutter has three different spaces to produce three sizes of rounded corners. Perfect for scrap booking, card making, and other projects, the corner cutter will give you 3 mm, 5 mm, and 8 mm size rounded corners.
It does what it says it does! As long as you line up the edges of the paper to
the edges leading into the punch, you'll get pretty rounded corners every time.
The bottom of the cutter can be removed easily so you can discard the paper bits
(or use it as confetti! huzzah!).
I've even used it with 140lb watercolor paper and it worked perfectly! Though
I'm not sure if using this cutter with thick paper frequently would be a good
BTW, it's 9.5 cm long, 8 cm wide, and 4.5 cm tall.
It is a great corner cutter in comparison to any other brand you will find in a
craft shop (I bought another brand of corner cutter from Paper Source and it was
terrible). Works most efficiently on card-type paper, I find it gets a little
bit clumsy with thicker/thinner paper than that, but I assume most people will
use it on business/occasion cards etc.