IRONWALLS Corner Rounder Cutter Machine, R6mm R10mm 1.2”/ 30mm Thickness Heavy Duty Paper Corner Cutter Punch with Paper Holding Device, Steel Metal Commercial Corner Punch for Office Business | Manual Paper Corner Cutter, Heavy Duty Steel Corner Punch for Cardstock, Plastic, Metal Sheet, Corner Rounding Tool

In general, good. That's what I expected. The only thing I didn't expect was that I would have to replace the knife and adjust it right away. It took a lot of time to set up so that the corners were cut as they should. I'm not an expert in this and it took me more than one hour to set it up. I even asked the GPT chat to help me set it up. But in the end I had to figure it all out myself. I wouldn't want to change the knife again, it's really difficult. And in general, it works well, one more thing. The bottom layer is always badly cut, apparently everything still needs to be adjusted.

This cutter machine is great and cuts through 6-ply mat board. Its a nice heavy duty machine and easy to setup and use.

this device is no joke. I have a job rounding thw corners if sign blanks made out of 1m8" ACM (plastic with aluminum skin on both sides) i had 100-s of these and was doing them by hand on a disk sander. qith thia tool i can do 10 blanks in the time it took me to do 1 before and the corners are perfect with no sanding needed. I have done over 150 blanks (600 corners) and it is still cuts as clean as the first time I used it.

This is the best investment for my small business. I was a bit worried because some of the reviews didn’t sound good - mainly issues with lining the guides up. It’s not that hard you just need to cut one corner how you like then push the blade down in the locked position and line up the guides to the paper or plastic (I used the plastic card that came with it). I tried ordering rounded corner notepads for my business and the manufacturer cuts were awful. I then ordered square corners and now I hand punch the corners myself. It’s easy to use and saves so much time. Best thing I’ve ever bought on Amazon for my business.

I used this to round the corners for a small booklet. It was very easy to use and die the job well. The quality of the cut was excellent. Size & weight were good for packing away until I needed it again.

This gadget makes crafting easier. I can order pointy cornered metal or chipboards and then trim them myself at the end of my project the cuts are clean and the device is easy to use. Not too heavy and not too light, I store it under my craft table when not in use.

Let me tell you about this product: It's good and does the job when set up correctly, but keep in mind there's quite a learning curve, and it requires two people for assembly. (Shockingly) After spending at least three hours trying to set it up, I was convinced it wouldn't work because I couldn't get it to cut the corners perfectly round. (I'm not willing to settle for anything other than a PERFECTLY ROUND CORNER) So, I asked my husband for help, and he worked on it for another hour and a half with no success. In the end, we ended up having to 3D print a jig with 10mm corners to achieve the perfect angle for the flaps. Without this jig, it would have been impossible to keep the flaps in place and angled in a way that makes a nice and round cut. I wouldn't recommend this product if your project requires frequent switching between blades or angles. It's a pain to set everything up each time, and unless you have two of these—one for each corner radius—switching blades would be a hassle after all the effort it takes. I don't like that some oil comes off the bottom, which smudges the table a little when it's moved around. Also, there's no tray to catch the cuts. Don't bother with this if you're cutting thin or not a large amount of paper, as it won't make a clean cut. I found that it works best on plastic cards and heavier materials. It does the job now that I have it set up. And It's my only option since those $9.99 corner cutters won't handle the materials I'm working with. In short, it works, if you are willing to invest the time and effort to make it work.

I love how this can cut a lot of corners at a time, but I do wish the blade was a little rounder. It can leave a minor error if not placed just write. I now know how to manipulate it to do what I need. I also wish the came with something to catch the paper trimmings. I love how it comes with an extra blade and how sturdy it is.