Shopping Cart

Your cart is empty.

Your cart is empty.

FretGuru Fret Crowning File – Diamond Dagger 2.0 Fret File Crowning Tool – The Guitar Luthier Tool for Ultra Precise Frets on Electric, Acoustic, and Bass Guitars - MD, LG, XL Frets

Free shipping on orders over $29.99

$89.95

$ 43 .99 $43.99

In Stock

1.Color:Dagger 2.0


  • Faster Cut, Smoother Finish - The Dagger’s exclusive D.I.A. (Dual Integrated Arc) design gives you greater cutting control, perfect fret centerlines and a finer fret finish. It’s sharp enough to quickly bring the sides of the fret up to a clearly defined center, without worrying about accidentally taking too much off the top. Some of our customers have even called it foolproof.
  • Prevent Damage to Your Frets and Fretboard - with the Dagger’s exclusive smooth beveled, contoured edges. The angled cutting surfaces and ergonomic handle are balanced and comfortable, helping to reduce hand fatigue, and also preventing damage to your guitar body by allowing maximum file and finger clearance over the guitar body, switches and pots as you move up your guitar neck. In most cases there’s no need to mask off your fingerboard.
  • Avoid School Bus Roof Shaped Frets and Their Tone Destroying Effects - Precisely leveled and crowned frets are the very foundation of a great sounding guitar. Worn, grooved, flattened frets will rob you of tone, volume, while doing a number on intonation. Our professional grade crowning file was created with file masters in the heart of Europe to fix these issues. Made from high carbon European tool steel with razor-sharp teeth to deliver a clean, ready-to-be-polished cut every time.
  • Designed For Most Guitars - This dual-sided fret crowning file is the ideal size and shape for acoustic and vintage electric guitars (MD or LG side), as well as modern electric guitars, or those with jumbo and super jumbo frets (LG or XL side), up to about 110”-112” wide maximum (aka Dunlop 6100). For huge monster frets, we have a “Mega” version of the Dagger 2.0 file coming soon. Use with FretGuru’s Precision Fret Leveling Beam for best performance.
  • For Professional Luthiers, Guitar Techs, Hobbyists and Beginners - The Dagger file is precise, advanced and durable enough to satisfy the most demanding professional luthier, yet so comfortable, easy and intuitive to use that even a first-time beginner can get superb results. Regular fret crowning, repair, maintenance and polishing has never been more comfortable, fast and easy. BEWARE of Dagger Shaped Fakes when buying!



4.7 out of 5 stars Best Sellers Rank
  • #5,767 in Musical Instruments (See Top 100 in Musical Instruments)
  • #113 in Guitar Tools
Date First Available November 27, 2020 Color Name Dagger 2.0 Proficiency Level All From Beginners to Luthiers

Product Description

Man playing electric guitar maintained with FretGuru tools
Fretguru crowning file looks comfortable to the hand
Crete precise leveled and crowned frets for best tone, intonation and sustain
Precision file grove prevent damage to fingerboard or frets
Fretguru Crowning File Dagger easy to maintain
Ideal for whole range of guitars with MD/LG side, LG/XL side and Dunlop 6100
Customer Reviews
4.7 out of 5 stars 1,407
4.7 out of 5 stars 1,407
4.8 out of 5 stars 2,345
4.7 out of 5 stars 1,271
4.8 out of 5 stars 1,095
Easy to Use
Precision Crafted

Daniel
Reviewed in Mexico on January 11, 2025
Hace su trabajo bien para trabajos caseros, para trabajos de uso rudo está la versión diamantada, aún que con dos trabajos sacas para comprarte la versión mejorada, en conclusión es perfecta para mantenimiento a guitarras personales, pero no sé que tanto desgaste tenga al uso de un luthier profesional
Cliente de
Reviewed in Mexico on July 31, 2024
nice quality
Noob Down Under.
Reviewed in Australia on June 25, 2024
Dagger 2.0 comes highly recommended and the price point vs the quality is spot on.Very ergonomic and manufactured to a very high standard, the diamond coating performed better than I expected.first use was on very old worn down frets, leveled so low they actually should have be replaced butI figured give it a go it can't hurt. The dagger did it's job perfectly and brought them back to life.The other neck with a just small level took all of 5 minutes to get a perfect crown all the way down.Highly recommend this crowning file.
Steven
Reviewed in Canada on December 22, 2024
Nice quality, done quite a few guitars and still works well.
MADmax
Reviewed in Canada on April 9, 2024
First time using a fret crowing tool, made quick work of my worn-out frets (which I had to level down quite a bit) and the final results were very nice! Works well and leaves a nice finish easy to polish. Excellent results. The only issue I have is the price in Canada compared to US which is ridiculous, and just recently went up quite a bit too... If you're in USA don't even think about it, get it! If in Canada, well, you are just getting ripped-off as usual... not the product's fault. It is a very good tool that saves lots of time and provides fast quality results. Why are Canadian being ripped-off all the time?
Kevin S. Morris
Reviewed in the United States on July 18, 2023
I delayed my review for awhile because i was still working with this product on a few fret dressing jobs.I had already contacted the owner and maker of this excellent tool and he was very responsive and loved the work I had done on a few of my guitars awhile back. I asked him for any possible future tools and handle grips and it seems like they have been in the works but are still on the drawing board!I'm looking forward to any new developments.Ok, this file was used on 3 guitars so far and here's the pro and cons+Excellent movement and versatility, This fixed one fret job where I had to do the fret level and crowning all over again, this file did an amazing job over the other one I used! It put it to shame+Frets were uniform after crowning. This thing evened out the fret ends as well which was a pleasant surprise and only needed to use the fret end file for touchup near the fret board! time saver+2 in 1 large and medium fret gauge 6100/6105+Saved me Alot of time and energy+Perfect for beginners that are learning how to do Luthier work+Easy to clean+Really good grip, no damage to fret board or no sliding off when filing+Got more confidence in my repair work as a learning Luthier (I took this into a guitar shop and got complimented on the frets looked great, just a few minor uneven frets where not enough material was filed off+Longevity+Going off price listing for fret dressing at a local repair shop, I saved around $700-1000 in repairs.Cons:- Handle could be bigger for big hands. rubber coating for grip- Gums up so have a cleaning brush handy- Can be aggressive in taking alot of material off if not careful so keep that in mind considering this is a Higher quality fret fileOverall, I LOVE! this tool and its something i will have on hand in my kit so whenever i get a guitar and it needs a setup, i can do it at the comfort of my home and i can get to playing on the same day!unless I really have to take it to the repair shop. STRONG RECCOMEND!
Jason Newsome
Reviewed in the United States on December 29, 2022
I don't normally do reviews...but when I find a new tool that does an old job well, I'll make an exception. My first impression? Elegant, simple, nicely refined surfaces. The handle edges are rounded, comfortable, and the swell at the end makes for a nice palm grip. This is a solid piece of tool steel with a concave rounded edge that as far as files go, is sharp and effective at crowning frets. I will note though, too much pressure will create a washboard surface on the fret...so let the file do the work. Like I said, as a file it's sharp. It does well at removing material in a convex shape that's perfect for a fret crown. There are two sides to this file...medium and large. The differences appear to be how deep the concave file surface is. I would still recommend taping your fretboard to keep from scratching it. The file's surface that can touch the fretboard is smooth and not abrasive, however shavings will still get between the smooth edge (of the tool) and the fret board and create etches in the fret board. It won't go through tape though. I would also recommend using some fret rubbers (erasers) to polish the frets to a nice glass-like surface. This file does well at crowning, but it shouldn't be expected to create a polish. Doing a proper fret job requires a series of steps. This tool is perfect for one of those steps - crowning. All that said, I'm glad to have this on my bench. It'll get plenty of use. Highly recommended!
Brian
Reviewed in the United States on May 19, 2021
I have a Zager, a meme guitar which leads you to believe it's made in America, and is actually constructed in Indonesia and "finished" here. I don't know what counts as finishing, but evidently it isn't a close inspection of the frets. I suffered with seasonal dead frets for the last 6 years on what otherwise is a very nice guitar, and only recently decided (because I cannot afford to take it to the shop) to risk taking matters into my own hands. After buying the basics, like a straight edge, fret rocker, file and micromesh pads, I thought I was in the clear to work on my instrument, and even just with those things, yes, it sounded much better. No more buzzing. No more dead frets. Everything was flat. But I didn't realize they make files just for crowning, and I could feel that my notes no longer 'bit' the way I expected.I'm no luthier, and I know that their tools probably cost as much as or a lot more than this one did, and so I felt I was really taking a dive here, buying a file I might only need to use once, but it would still be cheaper than having had all this fretwork done by a professional, so I yolo'd on it one evening. It showed up yesterday, and I was thrilled to give it a try. I believe next time I change the strings I'll apply it a little more just to be absolutely sure I've covered all my bases, but after going over everything and re-micromeshing the frets back to a mirror polish, I found that "bite" I expected was back in my notes, and suddenly my guitar not only sounded better than it ever had before, but it felt right to play again.I can't say whether this is better than all the other fret crowning files. I don't know. I've never done this before, and it'll likely be a long time before I do again. But I'm satisfied with my purchase. I'm satisfied with the value of the product. I was endeared by the informally written, hand-signed letter enclosed with the product, which is why I remembered to come write up my thoughts here now. I found the use of the tool to be quite effortless, and I find the change in sound on my guitar from before I began all this fretwork to after finishing it with the Dagger to be heart-stopping. Zager's entire pitch is that you can get a sound and a quality of feel which rivals the big name companies' high-end products without breaking the bank, and for the first time since buying the guitar (ZAD50CE), I finally believe it is living up to that promise. It is no longer disappointing and problematic for the money I paid. I believe it really does sit in that same sonic space as the Martins and Taylors I've had the good fortune to play on. For the first time since purchasing my guitar, I feel like I really love it, and am proud of it. It sounds just how I want it to, and I've got FretGuru to thank for getting it over the finish line.
Recommended Products