You know that feeling when you’re halfway through a backsplash, the blade starts wobbling, and suddenly every single cut looks like a beaver chewed through it? Yeah. That’s why I’m writing this.
I’ve burned through more 7-inch blades than I care to admit. Cheap ones that glaze over on the first pass. “Premium” ones that cost three times as much and still leave chips the size of your thumbnail on the backside of every porcelain piece. So when I grabbed this super thin blade from Amazon at $19.99, I wasn’t expecting much. Thirty-one reviews, 4.4 stars, no brand name I recognized. Classic gamble.
Turns out, it’s the blade I’ve been looking for since I started this whole tile mess. Here’s the honest breakdown after using it on real jobs, not just a test board in the garage.
The Problem That Made Me Buy This Blade
Porcelain is a bastard to cut. I don’t care what marketing says. It’s denser, harder, and more brittle than ceramic. Standard blades — the ones with thicker steel cores and bigger diamonds — they grab the surface, vibrate, and pop chips off the glaze. You end up hiding every edge cut behind a schluter trim or grout line. That’s not acceptable when you’re doing a herringbone floor and every single piece visible.
I’d been using a 10-inch blade on my big saw for most stuff, but for smaller work — the kind that fits in a 7-inch wet saw like the Skil 3550-02 7-Inch Wet Tile Saw with HydroLock Water Containment System — I needed something that could actually handle full-body porcelain without chipping. The stock blade that came with the saw worked about as well as a butter knife on a frozen steak.
So I started searching. Read the forum posts. Watched the YouTube videos. And kept coming back to this one. Super thin core. Turbo rim. Wet or dry. 5/8 to 7/8 arbor. Sounded too good for the price. But the reviews said it held up. So I pulled the trigger.
First Impressions: Packaging and Build
It comes in a basic plastic sleeve. Nothing fancy. No fancy laser-etched branding, no foam insert. Just a blade. I’m not mad about it — I’m not paying for packaging, I’m paying for the cut. But if you’re the type who likes unboxing experiences, this isn’t that.
The blade itself looks… precise. The steel core is noticeably thinner than your standard 7-inch blade. We’re talking somewhere around 1.0mm or less on the body, which means less material dragging through the cut, less heat, less resistance. The diamond segment is a continuous turbo rim — those little notches around the edge that help clear dust and cool the blade during dry cuts.
The arbor hole is listed as 5/8 to 7/8, and it comes with a bushing. I’ve seen some blades ship with a reducer ring that’s a pain to remove. This one fits snug. No wobble. That’s the first thing I check now — if the blade doesn’t seat perfectly on the arbor, every cut is garbage. This seated fine.
The Real Test: Cutting Full-Body Porcelain
Here’s where it matters. I had a job — 12x24 rectified porcelain planks, the good stuff, the ones that cost $6 a square foot and have zero tolerance for chipped edges. I’d been putting off the cuts around the door jamb because I knew the stock blade would butcher them.
First cut: a rip down the length of a plank. I lined it up on my wet saw, turned on the water, and pushed through at a steady pace. The blade didn’t shudder. Didn’t grab. Just… cut. Clean edge on both sides. No chip-out on the glaze side. I ran my finger along the edge — smooth. Not perfect, but damn close. The kind of edge you can actually leave visible if you need to.
Then I tried the miter. 45-degree angle on a porcelain edge. This is the real killer. Most blades will chip the point of the miter or the glaze on the backside. This one? Clean. The thin kerf means less material removed, which means the point of the miter stays sharp. I could butt two miters together and barely see the seam.
I did a bunch of L-cuts for outlet boxes. The blade tracked straight. No drifting. No burning. The water kept it cool and the continuous rim kept the cut smooth. I didn’t have to slow down or baby it.
Wet vs. Dry: The Honest Truth
The manufacturer claims wet or dry. I’ll be straight with you — I’ve used it dry on a grinder with a diamond cup wheel attachment for some quick plunge cuts on porcelain. It worked. Got hot, sure, but it didn’t glaze over or stop cutting. The turbo rim has enough notches to move air and clear the dust.
That said, if you have a wet saw, use it wet. That’s not a knock on the blade — that’s just physics. Wet cuts are cooler, cleaner, and the blade lasts longer. I’ve used it on my DEWALT Wet Tile Saw with Stand, 10 Inch, 15-Amp, 1,220 MWO, Corded (D36000S) with a reducer bushing for bigger pieces, and it handles that just fine too. The 7-inch size limits your depth of cut on a 10-inch saw, but for trim work and small format tile, it’s perfect.
Dry cutting on porcelain is always going to be a compromise. This blade is one of the better ones I’ve tried for it, but if you’re doing a whole floor dry, you’re going to shorten the blade’s life. No way around it. Keep a spray bottle handy if you’re in a pinch.
Granite and Marble: The Surprise
I didn’t expect this blade to handle stone. Porcelain is one thing — it’s hard but uniform. Granite has quartz and feldspar that’ll eat cheap blades alive. But I had a granite threshold to cut for the same bathroom project, and I didn’t feel like switching blades mid-job.
So I left the porcelain blade on and cut it. It went through. Slower than a dedicated granite blade, sure, but it didn’t chip and didn’t burn. The edge was clean enough to polish. I wouldn’t use this for production granite work — you’d want a segmented rim for that — but for a homeowner or a DIYer cutting a countertop offcut or a threshold, this blade is a nice multi-purpose option.
Marble is softer, so no surprise there. It cuts marble like a hot knife through butter. Watch your speed though — this blade is aggressive enough that it can pull through marble faster than you expect, and that can cause chip-out on the edges if you’re not careful. Let the blade do the work, don’t force it.
The Arbor Hole and Fitment Details
Standard 7-inch wet saws take a 5/8 arbor. That covers most of the market — the Skil, the smaller Ridgid, the budget WEN saws. The blade comes with a bushing to reduce from 7/8 to 5/8, which is nice because it means you can also run it on some grinders or saws that use the larger arbor. My grinder takes a 7/8, so I popped the bushing out and it fit perfectly.
One thing I noticed: the bushing is metal, not plastic. That’s a detail most budget blades skip. Plastic bushings wear out, get sloppy, and eventually let the blade wobble. This one stayed tight.
If you’re using a 10-inch saw and want to run this 7-inch blade for tighter cuts, you’ll need a 5/8 to 1-inch bushing or a 7/8 to 1-inch depending on your saw. Check your arbor size first. It’s a minor thing but it’ll save you the headache of a blade that doesn’t seat right.
Longevity: How Does It Hold Up After Several Jobs?
I’ve put this blade through about three full bathroom remodels plus a kitchen backsplash. That’s a lot of linear feet of porcelain, plus some granite and marble cuts. The blade is still cutting true. The diamond segment hasn’t worn down noticeably. No missing teeth on the turbo rim. No warping in the core.
Compare that to the cheap blades I used to buy from the big box store — those would be glazed over by the end of the first job, and I’d be pushing harder and harder until the cut started burning. This blade still cuts like it did on day one. At $19.99, that’s absurd value. I’ve paid $40 for blades that didn’t last half as long.
The thin core does mean it’s more fragile if you drop it or bang it against the saw table. I’ve dinged it a couple times and it’s fine, but I wouldn’t abuse it. Treat it like a precision tool and it’ll treat you right.
Small Drawbacks You Should Know
I’ll be honest about the quirks because that’s what separates a real review from an ad.
First, the thin kerf means it’s not ideal for cutting thick materials in a single pass. If you’re cutting through 3/4-inch thick granite or a double-thickness porcelain stack, you might need two passes. The blade doesn’t flex or deflect, but it’s not designed for heavy material removal. It’s a finishing blade, not a demolition blade.
Second, it’s loud. The turbo rim design creates more noise than a segmented blade, especially on dry cuts. Wear ear protection. I’m not your dad, but I’ve got tinnitus from a nail gun incident and I don’t want you making the same mistake.
Third, the blade runs a bit hot on extended dry cuts. If you’re doing a lot of dry cutting, stop every few minutes and let it cool down. Dunk it in water if you’re careful. The thin core doesn’t dissipate heat as fast as a thicker blade, so it can warp if you really push it. I haven’t warped mine, but I’ve felt it get warm.
How It Compares to the EZARC 10-Inch Blade
I’ve written before about the EZARC 10 Inch Super Thin Diamond Tile Blade — that’s my go-to when I’m on the big saw. This 7-inch blade from the same category performs remarkably similar. Same thin core philosophy, same chip-free cutting on porcelain.
The main difference is size and arbor. The 10-inch EZARC is a 5/8 arbor only, which limits it to wet saws. This 7-inch blade with the dual arbor option is more versatile — you can throw it on a grinder for plunge cuts or use it on a smaller saw for detail work. If you’re doing a mix of big and small jobs, having both is a solid combo. The 10-inch handles the big format tile, the 7-inch does the trim work and edges.
For the same price point, you can’t go wrong with either. But if you’re working in tight spaces — shower niches, window sills, small bathrooms — the 7-inch is easier to maneuver.
The Bottom Line: Should You Buy This Blade?
Look, I’m not going to tell you this is the greatest blade ever made. It’s not a $150 Italian-made precision diamond blade that’ll last through 10,000 square feet of tile. But for $19.99, it outperforms blades I’ve paid three times as much for. It cuts porcelain clean, handles stone better than expected, and has held up through multiple jobs without losing its edge.
If you’re a homeowner doing a one-off tile project, this is a no-brainer. If you’re a pro who does tile every day, you might want something with a thicker core for production work, but keep one of these in your bag for the finicky cuts where chip-out is the enemy.
I picked mine up through this link: Super Thin Porcelain Tile Blade 7 Inch. If you pick one up through the links here, I might get a small cut — doesn’t cost you extra and it helps keep the lights on.
The one thing I’ll warn you about is the dry-cutting. It works, but it’s not what this blade is made for. Keep it wet, feed it steady, and it’ll treat you right.
I’ve got a stack of blades in my garage that I’ll never use again. This one stays on my saw.