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โก Sharpen Like a Pro, Weld Like a Boss!
The SONNLER Tungsten Electrode Sharpener Grinder Head is a precision-engineered TIG welding accessory featuring 48 fixed holes with offset compensation, 10 double-sided diamond grinding wheels, and 3 CNC mandrels. It supports 6 tungsten sizes and 8 tip angles, enabling fast, accurate sharpening without height adjustments. Designed for compatibility with most rotary tools, this durable alloy steel sharpener enhances welding efficiency and consistency for professionals and beginners alike.





| Asin | B0CPV6J5GS |
| Best Sellers Rank | #80,150 in Automotive (See Top 100 in Automotive) #104 in TIG Welding Equipment |
| Brand Name | SONNLER |
| Customer Reviews | 4.5 4.5 out of 5 stars (184) 4.5 out of 5 stars |
| Finish Types | Unfinished |
| Included Components | Tungsten Electrode Sharpener |
| Item Type Name | Tungsten Electrode Sharpener Grinder Head |
| Item Weight | 8 ounces |
| Manufacturer | SONNLER |
| Material Type | Alloy Steel |
| Model | SN-12901 |
| Number Of Items | 14 |
| Part Number | SN-0901 |
| Unit Count | 1 Count |
User
Quickly sharpens even new tungstens accurately
The biggest issue with the sharpener is setting up the correct location/stickout of the mandrel so the diamond wheel lines up with the alignment hole/measurement. Once you get that set and locked separate the upper piece with the tungsten angle holes in it from the base then screw on the base onto your Dremel style tool. I used a generic on I bought separately dedicated for this purpose so I don't have to continually setup the tool to use it as I sharpen a LOT of tungstens when welding.I find that the tool gives me a quick way to put a point on the tungsten. The angles appear to be pretty correct, I haven't verified that every angle is perfect and if you notice after a bit of time some wobble will develop in the holes you feed the tungstens through if you use a drill to spin the tungstens as I do otherwise probably won't wear much. But the real world an exact angel to me isn't a requirement, more the general angle/shape of a sharp point with clean sides parallel grind marks on the tungsten leading to a more stable arc. I have yet to wear out the include diamond sharpening disks but I don't push excessively hard on the tungsten when putting a new point on tungstens, as with any grinder, file, sander... let the tool do the work, don't force it. If you force it that will just wear things out faster and your results probably won't justify the cost of replacing parts all the time.I feel it is a well made product and gives me good quality angles in the desired degree ranges I use often and it literally only takes few seconds, maybe 30 at most to get a good sharp tungsten every time, even from a flat start. I don't use the "triming" slot because I find it hard to control the tungsten stuffed down in the hole without any other support, it just ends up jamming the tungsten against the diamond when and the inside of the jig.I highly recommend it and expect to have it for a long time. Allows me to quickly prep my gear and keep welding.
User
The best for the price
Great product for quick sharpening of tungsten. Fits great on a Milwaukee M12 brushless rotary. Diamond wheels do not last but replacements are cheap enough. I would recommend this one over any other design out there
User
works as advertised.
I love it; it makes it easy to sharpen my tungsten
User
Maybe the best dremel based tool made
This is my new favorite welding gadget. It is very easy to install on a dremel tool and was a perfect fit. It is easy to remove if you need to repurpose. It works much like any screw on attachment you would use on a dremel and uses the standard collet size. As another customer mentioned it works best with a lighter effort and produces a very nice , sharp point. If you have a seldon used dremel laying around it will make for an inexpensive useful tool.
User
Guid great disks garbage
The sharpener it self is amazing, as others have stated it didnt fit on my dremel due to arbor height but it fit great on my other grinders. The reason for the 3 star review is the disks, first off the shafts I got with the grinder are bent and wobble, secondly the grinding disks are garbage i get about 1 tungsten out of it. Finding the right size of disk has been tricky as well there dosent seam to be a ton of options in that size of disk.
User
Head is great.... grinding wheels... not so much
Just received this tungsten electrode sharpener and at first I was VERY impressed with the quality of the grinder head and with the number of sharpening wheels that came with it. However, after assembly, I went to sharpen some tungsten electrodes, and when I turned on my Dremel, I thought it was going to vibrate right out of my hand! The diamond wheels that came with the unit are severely lacking in quality (balance); they are not anywhere near the quality that you would expect, especially looking at the quality of the grinder head. Since the Dremel was limited in speed due to vibrations, it took me longer than it should have to sharpen my tungsten electrodes. The accuracy of the angles in grinder head are pretty good and after finishing the grinding, it appeared that the sharpened electrodes had a slight swirl marking (as opposed to a straight in-line grind) due to the way that the tungsten was hitting the grinding wheel (not too sure how this will affect the arc during welding). I guess, for the price, it is worth it. The actual grinder head is much larger than I expected and a little heavier too, but overall, I like it. If somehow they could manage to provide a quality (BALANCED) grinding wheel(s) I would have given it a 5 star rating.
User
Sharpens fast. Fits my dremel
I was using a bench before trying this and so far I love it. Makes grinding down the tig rods fast and easy. Has a variety of holes for all the different size rods and the grinding wheels fit perfectly on my dremel. The whole thing screws directly on my dremel without issues. Everything fit. If you have an old dremel that has the chuck near the end of the dremel this may not work for you.
User
Inexpensive alternative for TIG electrode sharpening.
This is all you need if you are just learning to TIG. Fitted it on a Milwaukee M12 Rotary Tool and sharpened all my tungsten. Works great and gives you a lot of options. Nice and sturdy too, made from aluminum.
Trustpilot
2 months ago
2 weeks ago