I honestly didn't think woodturners wonders cbn wheels would make such a massive difference in my shop until I actually mounted one on my grinder and took my first gouge to it. If you've been turning for a while, you know the routine with traditional friable wheels. You spend half your time dressing the stone, breathed in way too much white dust, and constantly worried about overheating your tools and ruining the temper of that expensive high-speed steel. Switching to CBN feels like moving from a flip phone to a smartphone; you don't realize how much you were struggling until the struggle is just gone.
If you're sitting on the fence about whether or not to drop the cash on a set of these, I get it. They aren't exactly cheap compared to a ten-dollar stone from the hardware store. But after spending a few months with them, I've realized that the "wonder" part of the name isn't just marketing fluff. It's about how much easier they make the most tedious part of woodturning: sharpening.
What Exactly Is the Deal with CBN?
Before I got my hands on these, I had a vague idea of what CBN even was. It stands for Cubic Boron Nitride. Think of it as the cousin to industrial diamonds. It's incredibly hard—second only to diamond, actually—but it has a huge advantage when it comes to steel. While diamonds don't play nice with carbon steel at high temperatures (they can actually carbonize), CBN is perfectly happy grinding away at high-speed steel (HSS) all day long without breaking a sweat.
The coolest part about these wheels from Woodturners Wonders is that they aren't a solid chunk of abrasive. They're usually made of a precision-machined aluminum or steel hub with the CBN material electroplated onto the surface. This means the wheel is perfectly round, perfectly balanced, and—this is the big one—it never changes size. If you've ever used a Wolverine jig or any other sharpening system, you know the pain of having to adjust your settings every time your stone wears down an eighth of an inch. With these wheels, once you set your jig, you're done. It stays the same today, tomorrow, and five years from now.
Why Heat Is the Enemy of Your Gouges
We've all been there. You're trying to put a fresh edge on a bowl gouge, you get a little too aggressive, and suddenly the tip turns that dreaded shade of blue. That's the temper leaving the steel, and once it's gone, that edge won't stay sharp for more than a few passes.
Traditional stones are notorious for generating "frictional heat." They clog up with tiny bits of metal, which then creates more friction, which creates more heat. Woodturners wonders cbn wheels run incredibly cool. Because the aluminum hub acts like a giant heat sink, it pulls the heat away from the tool's edge. You can literally sharpen a tool, take it straight off the grinder, and touch the edge without burning your thumb. It's a total game-changer for the longevity of your tools. You aren't grinding away half your gouge just to get a clean edge; you're just kissing the metal and getting back to the lathe.
The Specifics: 4-in-1 and Radius Edges
One thing that really sets the Woodturners Wonders lineup apart is the variety they offer. Most people start with a standard flat-faced wheel, but they have these 4-in-1 wheels that are honestly genius. They have grit on the face, on the sides (about an inch down), and—most importantly—on the radius edge.
That rounded corner is a lifesaver for sharpening things like hollowing bits or small scrapers. Instead of trying to awkwardly navigate a sharp 90-degree corner on a standard stone, you have this smooth, rounded edge that lets you get into tight profiles. It's one of those things you don't think you need until you have it, and then you wonder how you ever lived without it.
Picking the Right Grit for Your Style
I used to think I needed a super fine stone to get a "sharp" edge. I was wrong. In the world of woodturning, a slightly "toothy" edge is actually a good thing for many tools. Most guys I know go with a two-wheel setup.
Typically, people put an 80-grit or 180-grit wheel on one side for heavy lifting. If you've got a new tool that needs a completely different grind profile, or if you dropped your gouge on the concrete floor (we've all done it), the 80-grit is going to save you a lot of time.
On the other side, a 350-grit or 600-grit wheel is the sweet spot for a finishing edge. I personally love the 350. It gives a wickedly sharp edge that peels off shavings like butter, but it's still aggressive enough that you only need a couple of seconds at the grinder to get back to work. Some people swear by the 600 or even the 1000 grit for their skews, but for a general-purpose bowl or spindle gouge, 350 is the "goldilocks" zone.
No More Dust and No More Mess
Can we talk about the mess for a second? Grinding with traditional stones is a filthy business. You end up with a layer of white or gray grit over everything in your shop—your lathe, your unfinished bowls, your lungs. It's nasty.
With woodturners wonders cbn wheels, there is zero stone dust. The only thing coming off the wheel is tiny little bits of metal filings. Since metal is heavier than stone dust, it mostly just falls straight down onto the bench. I put a little magnet under my grinder, and it catches about 90% of the metal "fuzz." My shop stays cleaner, and I'm not breathing in abrasive particles. That alone makes the investment worth it in my book.
Setup and Those Magical Spherical Washers
If you've ever bought a cheap bench grinder, you know the wheels often wobble like a shopping cart with a bad wheel. Usually, it's not the grinder's fault; it's the cheap stamped-steel washers that come with it.
When I ordered my wheels from Woodturners Wonders, I also grabbed their spherical washer sets. They are basically two-part washers that "self-align." If your grinder shaft isn't perfectly true, these washers compensate for it. When I turned my grinder on for the first time with the CBN wheels and the spherical washers, it was so smooth I thought I'd forgotten to plug it in. There was zero vibration. The grinder didn't try to walk across my workbench. It just hummed quietly.
Is the Investment Actually Worth It?
Let's be real: a pair of these wheels can cost as much as a decent mid-sized lathe. It's a bit of a gut-punch to the wallet at first. But you have to look at it as a lifetime purchase. Unlike stone wheels, which you'll replace every year or two if you're a frequent turner, these CBN wheels are designed to last a decade or more in a hobbyist shop.
Think about the cost of your tools, too. If you're using $100 gouges, you don't want to grind them away into nothingness using a coarse stone that requires constant dressing. Because these wheels stay cool and don't require heavy pressure, your tools last significantly longer. You're saving money on the back end by not having to replace your favorite scrapers and gouges nearly as often.
Final Thoughts from the Shop
At the end of the day, woodturning is supposed to be fun. Nothing kills the vibe faster than a dull tool and a frustrating sharpening experience. Since I put the woodturners wonders cbn wheels on my Rikon, I find myself "touching up" my tools more often. Because it only takes five seconds and doesn't make a mess, I never settle for a "good enough" edge.
If you're tired of the dust, the heat, and the constant fussing with jigs, just do yourself a favor and make the swap. Your tools will thank you, your bowls will have a better finish, and you'll actually enjoy the time you spend at the grinder instead of dreading it. It's one of those rare shop upgrades where the hype actually matches the reality.