I bolted this six-spiral beast into my old SCMI S52 and—no exaggeration—the planer now sounds like it’s humming a cosmic mantra while atomizing tear-out into confetti. Feed a gnarly board in, and what comes out the other side looks kaleidoscopic: shimmering, glassy, and flat like it’s been politely negotiated into perfection by a thousand tiny diplomats in carbide suits.

This head is psychedelic in the best way—not trippy, just transformative. The cut is quiet-er, the chips are tiny, and the finish is so clean it feels illegal. Western hemlock with squirrelly grain? It shrugs. Edge banding knots? Yawn. The six-start helical pattern keeps the bite constant, so the machine doesn’t lurch—just a smooth, relentless zzzzzzip as the work glides through.

Is it scary? Absolutely. It’s a beautiful monster. Treat it with respect and it rewards you with:

No drama, no tear-out – even on cranky grain.

Sweet, steady feed – fewer vibes, more control.

Low maintenance – rotate the inserts, keep cutting like a boss.

Bottom line: this isn’t just an upgrade—it’s a planer rebirth. If your S52 still has straight knives, you’re living in black-and-white. This head flips the switch to full technicolor. Buy it, bolt it in, and prepare to grin like an idiot at boards that look too good to sand.

The cutter fit perfectly into machine, there is a noticeable difference in the quality of the cut compared to the standard cutter that came with the machine. It is also a bit quieter. This cutter is worth the investment .

I ordered my cutter head and was soon there after contacted by customer service. They wanted me to confirm the dimensions of my cutter head to be sure theirs would fit my machine. I sent them back the dimensions and after confirming the fit they shipped the head to me. While I was installing it I broke the pinion gear that had to be transferred from my old head to their new one. After calling the manufacturer of my machine and being told it might take as long as 6 months to get the part, I contacted Sheartak and told them of my dilemma. They took the time and effort to look up a compatible pinion gear in stock at my manufacturer. I ordered it and got the part soon after. I was able to install the Sheartak cutter head and try it. It was impressive. It was half as loud as my original. The chips were much finer and easier for my dust collection system to handle. The finish on the boards was incredible. They came out like they were already sanded with 180 grit sand paper. I'm going to go through a lot less sand paper now. I think the company was fantastic , going way out of their way to help me. Thanks Mike!

As an experienced woodworker, I was tired of dealing with chipped and dull blades on my aging Delta 6-inch jointer. I wanted an upgrade with a helical cutterhead, but without spending a fortune on a brand-new machine. After researching, I found that most affordable options were flimsy tabletop models—overpriced for their quality.

Instead, I decided to retrofit my Delta with a helical cutterhead and new bearings. The investment was just a few hundred dollars, plus some time for installation. The process was straightforward, requiring no special tools, and the results have been outstanding. My jointer now produces a buttery-smooth finish, and with this upgrade, it’s built to last a lifetime.

A special thanks to Sheartak for their excellent customer service—they asked all the right questions to ensure I got the correct part. I couldn’t be happier with the outcome. And best of all? No Amazon needed!

purchased recently. i received it after ~1month for China. packed well, also got extra knives & screws as spare. the cutterhead is as awesome as they promised. replaced it in a few hours, adjusted the planer / knives. the quality is great, exactly perfect for my metabo machine. absolutely recommended for upgrades!

Installation was easy, but I made it harder than it needed to be. When it was time to put in the new head, I hit the threaded end to align it without putting back the pulley first and I damaged the threads. No big deal though, I sent it to a machining shop nearby and they fixed the threads. After installing it the right way I torqued each knife to spec I tried it and the results were very good, but I had some vert small lines showing. After realigning some of the inserts the boards came out so smooth I understood why people go crazy about these heads. When looking at the boards under light you might see some lines on them but you shouldn’t feel them with your hands. It shouldn’t matter though if you sand your projects, and it is galaxies better than the nicked straight blades I was using (I am kind of lazy about blade changes). I took the same 1/16 passes I usually do and the motor doesn’t seem to be working significantly harder than with the standard head, time will tell if the motor likes the upgrade or not. Noise is reduced but you absolutely will need ear protection anyway. Hard maple usually teared out a lot with the last set of straight blades I had, and the maple test piece came out flawless.

Overall very satisfied, after three years of buying straight knives I feel like this cutterhead is going to save me some money and tearout induced headache.

Easy to install, huge improvement over the stock cutterhead.

The cutterhead replacement is accomplished! It was totally worth it!

Updating the cutterhead of my old machine with a Sheartak helical one was the best investment I could have done, it was like a magic rejuvenating cure, working with the machine now is such a treat, the finish is amazingly clean, all former frustration is gone - and my personal highlight: It became whisper quite, I sometimes forget to put my ear protection!
And as a side effect: I got to know my machine much better from the inside.

I’m very grateful for your kind support and your quick assistance in replacing the non-fit cutterhead.

I ordered it from Canada, and it arrived fairly quickly. There were some additional costs for importing it into the EU, but it seems to have been worth it. It works excellently, the surfaces are much smoother, and it operates more quietly.

Great product! It arrived quickly and work perfectly!

Good price. Excellent performance. Easy install.

After installing the butterhead on my jointer the experience can be summarized in two words: smooth and quiet. The jointer delivered very smooth cut surfaces at a significantly reduced noise. In fact, the dust collector makes more noise. This is fantastic upgrade for a used machine.

I was a little hesitant to spend this much money on this cutter head but am very happy that I did. It takes about 2 hours to install but is worth the time and energy. Customer Service was great to work with and to set up the order. Everything fit perfect. My planner is 1/2 as loud as it was before. I have already run 40 hard wood cutting boards through and the finish is perfect. Extremely happy.
Thanks
Todd from Ontario Canada

I've never left a review on anything before, but this planer head for my 40 volt makita planer is too good to not leave a review!!
Seriously improves the cutting ability and speed! Its a lot quieter cutting too! Best upgrade ever, in my opinion!

Disassembly and installation of the new cutter head was straightforward as long as you are able to deal with bearings that are a press fit into the chassis. The new cutter head made a large difference compared to the original. The cut was much smoother and even end grain cuts on cherry were without any tear out. Equally impressive was the reduction in noise levels, the new head is MUCH quieter. It has rejuvenated my little jointer to a level well above its original ability.