Review by Tina Koyama
The corner rounder I’ve been using is an old Fiskars squeeze punch that is not very comfortable to use. I am also not fond of how the cutting scraps scatter all over the desk and floor. It was time to upgrade to the Sun-Star Kadomaru Neo 3-Way Corner Cutter ($13.75, available in black and white).
I’ve been making myself doodly, abstract coloring books with engineering templates and Field Notes Brand notebooks (see my personal blog for details). I usually use dry colored pencils, but sometimes I get in the mood to use watercolor pencils. Field Notes paper, however, is not the best for wet media, so I decided it was time to make a small coloring book with water-friendly paper. It was an ideal opportunity to test the Sun-Star corner cutter.
A key feature of the Sun-Star Pro Neo is that it offers three corner radii in one compact device – small (3mm), medium (5mm) and large (8mm).
A lock in back keeps the cutter from cutting paper inadvertently.
I tested it first on a scrap sheet of cover stock. Slide a corner into one of the three marked cutting areas, and press the lever. Requiring little pressure, it’s very easy to use.
I chose the medium-size (5mm) radius for my little book. The cuts are neat and clean.
The paper I chose for the innards is Canson XL 98-pound mixed media, which has a nice tooth and can hold a light wash. It’s heavier than typical notebook paper, and I comfortably punched two sheets at a time. Three is pushing it.
Corner scraps are neatly collected in a compartment at the bottom, which is easy to open and empty into a wastebasket (instead of leaving corners all over the floor or my desk).
There’s nothing like rounded corners to make a little homemade booklet look so much better and more finished! The Sun-Star cutter does the job nicely.
Incidentally, if you are DIY-ing your own little booklets, I recommend a long-reach stapler. I use a Bostitch PaperPro, which requires very little effort to press and takes standard staples. Its only downside is that it’s difficult to see where the staple will go. I recommend stapling a scrap sheet and use a Sharpie to mark your stapler where the staple went. Then just line up your mark to the location where you want to staple. You will be an instant bookmaker.
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