Over the holidays I had added a couple of budget-y priced, portable corner rounders to my Amazon cart. When they arrived I was sorely disappointed. They left nicks in the paper and didn’t have anything to catch the little paper flecks so I was leaving a trail all over my office, the coffee shop and the floor. So when I placed my last order with JetPens, I saw the Sun-Star Kadomarun Round Corner Punch ($7.25) and decided to give it a try instead since I was swearing a blue streak at the crap ones I had bought previously.
Boy, am I ever glad I upgraded! While the Sun-Star Kadomarun Round Corner Punch is a bit larger than the others I purchased, the kidney bean space makes it comfortably ergonomic in the hand. It also has a little trap door on the bottom to catch the paper scraps.
When used, the Sun-Star clicks firmly so you know you have successfully rounded your corner and it makes a perfect clean edge. I found it works particularly well on card stock like index cards and 3x5s. Lighter weight paper worked better if I put two or three sheets in at a time.
Overall the Sun-Star Kadomarun Round Corner Punch is totally worth the price if you like to round the corners of your printables, index cards or paper goods. Its a fun, easy little device to have on hand and makes your pieces look finished fast.