Sunstar Stationery Corner Cutter Kadomaru PRO NEO Black with Authentic Hologram US, EU Only

The New Sunstar Kadomaru Pro Corner Cutter is truly made in Japan quality — very crisp and easy to punch. I love that it comes with three different sizes (see photo attached), so I can use it for a variety of projects. It handles paper smoothly and consistently, leaving perfectly rounded corners every time. If you’re looking for a reliable, high-quality corner puncher, this is definitely the best one you can get.

I’ve tried a handful of corner cutters and this one is easily the best. The Sunstar Kadomaru Pro feels sturdy, well made, and smooth to use. It cuts perfectly clean corners every time with no frayed edges or uneven spots. Even on thicker cardstock and laminated paper it glides through without any effort. I love that it gives you three corner sizes to choose from. Small, medium, and large all look great and actually make a noticeable difference depending on what you are working on. Switching between them is quick and simple. I’ve used it for thank you cards, flyers, product tags, and even photo prints. Every single cut looks clean and professional. It also has a little compartment that catches the paper scraps so you don’t have to deal with a mess afterward. The design is compact and feels premium, not flimsy like most other ones. If you do any type of crafting, printing, or packaging work this thing is worth every penny. I honestly can’t imagine going back to the cheaper cutters after using this one. It’s fantastic.

The Sunstar Kadomaru Pro corner cutter works well for what I need, and the quality feels solid for light to moderate use. It gives a clean, rounded corner that looks really nice on cards, photos, and simple paper projects, which makes it great for crafting and card making at home. It is easy enough to squeeze and line up, even when I am working quickly or helping one of my kids with a school project. That said, I would not recommend it for very heavy use or thick materials. It is better suited for regular paper and lighter cardstock rather than constant high volume cutting. For a home crafter or someone who likes neatly finished corners without investing in a big machine, this is a handy tool to have in the drawer.

A lot of these look really cheap, so I went for the one that looked sturdiest. I use a lot of index cards, and I was rounding the corners with scissors, which takes time and doesn't look very good. You can clip the corners on bristol board and it looks die-cut. The round corners really make a difference. There are 3 radiuses, from super small to pretty big. The construction is sturdy plastic and holds up well. Hundreds of cuts and it still cuts perfectly. The soft plastic bottom pops off to let the chads out, and I can tell it's going to be the part that wears out first. There's a tab that will give way, and I'll probably end up taping it shut. Small price to pay, still five stars.

The item works really great. I laminated some photos and used it to round out the sharp corners. It was fairly easy to use and scraps were easy to clean out. My only complaint is that I was sent a USED one that still scraps left inside. I thought I was paying for a new one but apparently not! I would’ve returned it if I didn’t need to use it immediately.

I love this corner punch. It's so easy to use and cuts super clean. It has a nice lever for punching and makes a really satisfying click when you use it. It's well made and it feels like it'll hold up after a lot of use. I use the small punch to make the corners of hand-drawn trading cards and I like how there's a medium and large punch as well for other uses. It's a bit heavy which is good for keeping it stable when punching. For how many cards I've drawn, it's saved me so much time. Well worth the purchase. Super easy to use and really satisfying click!

Nice to add this corner cutter to my crafting supplies. Three different size corners with an easy to empty scrap catcher in the base. Just insert the item into one of the punch areas and press down on the handle. There are side guides for each punch to keep your card stock or laminated card stock in the proper place. Each punch area is marked S, M, or L so it is easy to know which one you are using. I make my own card games using laminated card stock and this corner cutter is so much better than hand cutting them. Nice clean curves - no more sharp corners. Wished I knew about this sooner. Cutter seems well made and I have already used it several hundred times (not exaggerating).

This baby is a wonder! I had a cheap corner rounder previously and knew I needed an upgrade. I've used her on thicker cardstock, PLASTIC COVERS, and even planners. The planner I use currently is the one you see in the video, I call her Big Bertha. It's accurate, trust me, she's a hefty Hemlock & Oak dated 2025 daily planner. I love her, but....she came with square pages and this girl here? NO square pages (wire hangers are fine haha)! I have rounded three full planners, actually, so the durability and the upgrade in quality cannot be beat. it's very easy to use, it works well so you can actually round multiple pages at one and, as I said, even plastic covers, though that takes some muscle power. It's a nice size, not much bigger than my cheaper one and again, you can just use it for ages! THREE H&O planners and tons of other things as well. When (or IF) this baby ever gives up the ghost, I will promptly be getting exactly this to replace it.