Rolling Knife Sharpener from Temu Review

This is a review of one of those rolling knife sharpeners you’ve probably seen on TikTok — magnetic holder, fixed angle, and a little wheel you roll back and forth to get a “razor sharp” edge. Some videos even show off perfect BESS tester scores, slicing through a thread with zero resistance.

So when one popped up on Temu for around 10–12€, I figured I’d give it a shot. I’ve used the Delimano mini sharpener before (same price range), and it actually works okay — not perfect, but it does the job.

This one? Looked better, felt better… and that’s why I decided to try it out, thus this review.

Why I Bought It

Like I said, I got pulled in by the TikTok hype. These rolling sharpeners all follow the same idea: magnetic base, fixed angles, and a rolling wheel with different grits.

The results in the videos looked impressive and honestly kind of addictive to watch. Clean cuts, perfect control, and no need for freehand skills.

So when I saw this one on Temu, I figured — screw it, let’s try. For 10 to 15 dollars, it’s a tiny risk if it actually works. It claimed to have a 400 and 1000 grit wheel, plus 15° and 20° angle guides, depending on the knife.

And when it arrived, it looked legit. The magnet was strong, the build felt okay, and on the surface, it gave off the “this might actually work” vibe.

And hey, for that price, how bad could it be?

Build Quality & First Impressions

When I took it out of the box, I was honestly impressed. The wooden base looks great, and everything feels solid and well put together. No wobble, no cheap plastic vibe — just a clean, compact tool that feels like it means business.

The roller has two sharpening wheels, one on each side: 400 grit on one, 1000 grit on the other. You can actually feel the difference just by running your fingers over them.

The angle guides (15° and 20°) also seem spot on — I didn’t measure them with a tool, but visually and by feel, they look accurate and well-machined.

My first thought was: finally. No more guessing angles, no more worrying about holding the knife wrong.

This thing looked like it could remove all human error from the sharpening process.

How It Actually Performs

I started with a knife I know well — not an expensive one, but a favorite. It dulls quickly, sure, but it also sharpens easily and normally ends up with an edge like a scalpel. Perfect test candidate.

I followed the instructions to the letter. Locked it in, chose the right angle, used light pressure, kept the grit and blade wet — everything by the book.

But the result just wasn’t there.

The edge didn’t feel sharp. It looked fine at first glance, but when I ran a cloth over the blade, tiny threads kept catching. That’s when I knew something was off. No clean slicing, just a rough edge with micro-damage. It could cut soft stuff like sausage without much trouble, but anything more delicate — forget it. Even the classic paper test failed. Instead of slicing, it tore.

Still, I gave it a fair shot. Tried three or four times with that same knife. Waited a few days, came back fresh, tried again on a different one — same problem. Every time, the edge came out worse than when I started.

Then I did one last test: I took the same knife and ran it through my old Delimano mini sharpener — maybe five quick passes. And just like that, the edge was smoother, sharper, and more usable. It’s not perfect, but it’s easily 80% better.

That’s when it really hit me — the damage I was trying to fix had come from the rolling sharpener itself.

And this wasn’t just a one-off. I tried everything to make it work. But at the end of the day, the results just didn’t justify the effort—or the damage.

Paper Test Comparison

One of the easiest ways to check sharpness is the classic paper slicing test.

Clean edge = clean cut. Simple as that.

With the rolling sharpener, the knife actually started off okay. The first few centimeters sliced the paper decently. But then — tear city. The blade began catching, dragging, and ripping the paper instead of slicing it. That’s when I realized the edge wasn’t smooth at all. It had tiny chips that were ruining the cut.

Then I sharpened the same knife using the Delimano mini sharpener. Again, just a few quick swipes. The difference was obvious. Still not a perfect slice, but way cleaner. The edge didn’t snag the paper nearly as much, and it actually felt like the knife could do its job.

It’s a simple test, but it says a lot.

Final Verdict

Rolling sharpener looks great, feels solid, and promises a lot — but at the end of the day, it just doesn’t do the one thing it’s supposed to: sharpen knives properly.

Yes, it’s easy to use. Yes, it looks like a professional tool. But the results speak for themselves — rough edges, micro-damage, and worse performance than before sharpening. I gave it multiple chances, followed all the steps, and tested different knives… nothing helped.

For the same money, the Delimano mini glide sharpener gave me way better results with way less effort. It’s not perfect, but at least it makes knives sharper, not worse.

So, should you buy this rolling sharpener from Temu? Honestly — no.

If you care about your knives, especially better ones, don’t let this thing near them.

It’s a perfect example of something that looks the part, but just doesn’t deliver.