---
product_id: 612343898
title: "FretGuru Guitar Fret Crowning File - Dual Sided Dagger 2.0 - LG/XL and XXL/HUGE - Ideal for Frets between .095\" to .118\" wide - Professional Luthier Tool for Electric and Bass Guitars"
brand: "fretguru"
price: "3787010₫"
currency: VND
in_stock: false
reviews_count: 8
url: https://www.desertcart.vn/products/612343898-fretguru-guitar-fret-crowning-file-dual-sided-dagger-2-0
store_origin: VN
region: Vietnam
---

# Dual-sided file for LG/XL & XXL frets Dual Integrated Arc design for precision High carbon European tool steel durability FretGuru Guitar Fret Crowning File - Dual Sided Dagger 2.0 - LG/XL and XXL/HUGE - Ideal for Frets between .095" to .118" wide - Professional Luthier Tool for Electric and Bass Guitars

**Brand:** fretguru
**Price:** 3787010₫
**Availability:** ❌ Out of Stock

## Summary

> 🎸 Crown your frets like a pro — never miss a note or a gig!

## Quick Answers

- **What is this?** FretGuru Guitar Fret Crowning File - Dual Sided Dagger 2.0 - LG/XL and XXL/HUGE - Ideal for Frets between .095" to .118" wide - Professional Luthier Tool for Electric and Bass Guitars by fretguru
- **How much does it cost?** 3787010₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/612343898-fretguru-guitar-fret-crowning-file-dual-sided-dagger-2-0)

## Best For

- fretguru enthusiasts

## Why This Product

- Trusted fretguru brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ergonomic Mastery:** Balanced handle reduces hand fatigue & protects your guitar body
- • **Precision Perfected:** D.I.A. design ensures flawless fret crowning every time
- • **Pro-Grade Durability:** Razor-sharp, high carbon steel teeth for smooth, fast cuts
- • **Dual-Sided Versatility:** Fits jumbo to super jumbo frets (.095"-.118" wide) with ease
- • **Beginner to Pro Friendly:** Intuitive design delivers expert results for all skill levels

## Overview

The FretGuru Dagger 2.0 is a professional dual-sided fret crowning file crafted from high carbon European tool steel. Designed for electric and bass guitars with wider frets (.095" to .118"), it features an exclusive Dual Integrated Arc design for precise, smooth fret shaping. Its ergonomic handle and beveled edges protect your guitar while reducing hand fatigue, making it ideal for luthiers, techs, and hobbyists seeking fast, flawless fret maintenance.

## Description

FretGuru Guitar Fret Crowning File - Diamond Dagger

Review: Diamond Dagger vs Dagger 2.0 (Which is better?) - I bought both FretGuru files (Diamond Dagger and Dagger 2.0) through desertcart and so this review will be a comparison of the two. Short Version: They are both excellent; but if you can only get one, the Diamond Dagger is better in my opinion. Read on for more information. I’ve been playing guitar for over 30 years, but only began to work on my guitars seriously in the last 5 years or so. I’m not a professional guitar shop guy. I am writing this review to help other hobbyists like me. I’ve leveled, crowned, and polished several guitars. One file I have used to use for crowning was the StewMac Diamond Compact Z-File original file (300 grit). It is a great file, but as StewMac says it is: “ideal for worn, low, and wide frets.” Because I like to use jumbo frets (Dunlop 6100, and Jescar FW57110), I decided to take a chance on the FretGuru Dagger 2.0 because it has two sides: (1) one made for Dunlop 6100 frets and (2) one made for Dunlop 6105 frets. The Jescar FW57110 frets happen to be very close in dimensions to Dunlop 6100 frets. I crowned one of my guitars with the Diamond Dagger (Jescar frets, nickel silver) and another guitar with the Dagger 2.0 (Dunlop 6100 frets, nickel silver). Here is what I experienced. The Dagger 2.0 works well. It cuts smoothly and feels good in your hand. However, it only cuts one direction and so after every push forward you have to lift it off the fret and start again. After crowing a fret I would clean the Dagger 2.0 with a brass wire brush to unclog it of any stray pieces of metal. That worked pretty well, but made it more labor intensive than the Diamond file, which did not need such cleaning. Sometimes there was a stubborn piece of metal in the file that I would pick out carefully with an ”icepick” like tool looking through my magnification visor. All in all, the Dagger 2.0 performed very well on that guitar and the frets polished up nicely with my Dremel tool and polishing rouge. I tried the Diamond dagger on another guitar and it also worked very well, but was better overall for three reasons. First, Diamond files are great because you can “saw” back and forth without lifting it off the fret (though make sure not to take off too much—you have to leave a thin magic marker line so the fret leveling is not undone). Second, I did not have to clean the Diamond version with a brass wire brush. Occasionally, I’d clean it with nylon bristles, though to be honest, I don’t think it needed such cleaning. The Diamond cuts nickel silver frets like butter. Third, the Diamond dagger has one feature the Dagger 2.0 does not have. The Diamond Dagger has 2 extra filing sides on the opposite end of the file (you have to see the pictures to understand what I mean). But this is great because sometimes I find that when crowning a fret my magic marker line in the middle of the fret is fatter/wider than at the ends of the fret. With the shorter filing side of the Diamond Dagger, I can work on just that middle section to make it have as thin a line as the other parts of the fret. This is really a great feature in my opinion and ergonomically both ends of the Diamond Dagger feel great in your hand (very comfortable and easy to maneuver). So, in conclusion, if you are working on Dunlop 6100/Jescar FW57110 frets the Diamond Dagger fits them like “hand to glove” and gives great results--even to hobbyists like me. The quality of both files is great, the prices are better than competitors; plus Bernie (the Fretguru owner) is a nice guy and very responsive to email. I emailed him with a question and needing some help and replied the same day. Finally, StewMac is great too; I love their products and customer service—but as many know they do have higher prices. All of that said, while StewMac’s Diamond Compact Z-File centered file will not work with jumbo frets, they do have other files that will (#4491, #5054, # 5183). I like both companies, but when it comes to my jumbo frets, the FretGuru Diamond Dagger is my new file of choice. Hope this was helpful for some of you.
Review: It's super easy to use, huge difference - I have a fantastic luthier, but he's so good he's always busy, so wanted to learn to do some stuff myself. This fret dagger is a fantastic little investment. I tend to make flat spots pretty bad on my frets with my weird crippled left hand, so I often need to do a quick re-crown during a string change to take out some buzz. This fret dagger works great and makes it real fast. Tape it up, check which side to use, paint 'em with the marker, and crown 'em quick. Hit 'em with the sanding sponge and 000 steel wool, clean and lemon-oil the fingerboard and the thing plays wonderful again. I can do that a good 4-5 times before having to do a partial re-fret at the luthier. I've had it about 10 months now, used it a ton, very happy with it. I make sure to clean it good with a brush after every fret, and the teeth on the thing seem to be lasting quite well. At the price, I'm not too worried about the teeth lasting, it's a good investment for my use case. Absolutely recommend the thing. Just a great tool to have when you've got some buzzing flat spots. Fully awesome at crowning the full fret levels I've done as well.

## Features

- 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 Wider Electric Guitars with or Bass Guitars with Monster Frets - This dual-sided fret crowning file is the ideal size and shape for acoustic and vintage electric guitars (LG, XL and XXL Frets), as well as modern electric guitars, or those with jumbo and super jumbo frets (LG or XL side) with .095" to .110" wise (LG/XL/6100 side) and .106" to .118" (XXL / Huge/ 6000 side).
- 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!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CTKS96P6 |
| Best Sellers Rank | #38,150 in Musical Instruments ( See Top 100 in Musical Instruments ) #990 in Guitar Tools |
| Color Name | Dagger 2.0 XXL |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,430) |
| Date First Available | January 30, 2024 |
| Item Weight | 4.2 ounces |
| Material Type | Tool Steel |
| Product Dimensions | 3.15 x 3.94 x 7.87 inches |

## Images

![FretGuru Guitar Fret Crowning File - Dual Sided Dagger 2.0 - LG/XL and XXL/HUGE - Ideal for Frets between .095" to .118" wide - Professional Luthier Tool for Electric and Bass Guitars - Image 1](https://m.media-amazon.com/images/I/61TlaUSlEWL.jpg)
![FretGuru Guitar Fret Crowning File - Dual Sided Dagger 2.0 - LG/XL and XXL/HUGE - Ideal for Frets between .095" to .118" wide - Professional Luthier Tool for Electric and Bass Guitars - Image 2](https://m.media-amazon.com/images/I/81vNESj0lIL.jpg)
![FretGuru Guitar Fret Crowning File - Dual Sided Dagger 2.0 - LG/XL and XXL/HUGE - Ideal for Frets between .095" to .118" wide - Professional Luthier Tool for Electric and Bass Guitars - Image 3](https://m.media-amazon.com/images/I/81Y3B-TUwSL.jpg)
![FretGuru Guitar Fret Crowning File - Dual Sided Dagger 2.0 - LG/XL and XXL/HUGE - Ideal for Frets between .095" to .118" wide - Professional Luthier Tool for Electric and Bass Guitars - Image 4](https://m.media-amazon.com/images/I/818rpGGUV0L.jpg)
![FretGuru Guitar Fret Crowning File - Dual Sided Dagger 2.0 - LG/XL and XXL/HUGE - Ideal for Frets between .095" to .118" wide - Professional Luthier Tool for Electric and Bass Guitars - Image 5](https://m.media-amazon.com/images/I/81JLgAciXxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Diamond Dagger vs Dagger 2.0 (Which is better?)
*by P***B on February 17, 2023*

I bought both FretGuru files (Diamond Dagger and Dagger 2.0) through amazon and so this review will be a comparison of the two. Short Version: They are both excellent; but if you can only get one, the Diamond Dagger is better in my opinion. Read on for more information. I’ve been playing guitar for over 30 years, but only began to work on my guitars seriously in the last 5 years or so. I’m not a professional guitar shop guy. I am writing this review to help other hobbyists like me. I’ve leveled, crowned, and polished several guitars. One file I have used to use for crowning was the StewMac Diamond Compact Z-File original file (300 grit). It is a great file, but as StewMac says it is: “ideal for worn, low, and wide frets.” Because I like to use jumbo frets (Dunlop 6100, and Jescar FW57110), I decided to take a chance on the FretGuru Dagger 2.0 because it has two sides: (1) one made for Dunlop 6100 frets and (2) one made for Dunlop 6105 frets. The Jescar FW57110 frets happen to be very close in dimensions to Dunlop 6100 frets. I crowned one of my guitars with the Diamond Dagger (Jescar frets, nickel silver) and another guitar with the Dagger 2.0 (Dunlop 6100 frets, nickel silver). Here is what I experienced. The Dagger 2.0 works well. It cuts smoothly and feels good in your hand. However, it only cuts one direction and so after every push forward you have to lift it off the fret and start again. After crowing a fret I would clean the Dagger 2.0 with a brass wire brush to unclog it of any stray pieces of metal. That worked pretty well, but made it more labor intensive than the Diamond file, which did not need such cleaning. Sometimes there was a stubborn piece of metal in the file that I would pick out carefully with an ”icepick” like tool looking through my magnification visor. All in all, the Dagger 2.0 performed very well on that guitar and the frets polished up nicely with my Dremel tool and polishing rouge. I tried the Diamond dagger on another guitar and it also worked very well, but was better overall for three reasons. First, Diamond files are great because you can “saw” back and forth without lifting it off the fret (though make sure not to take off too much—you have to leave a thin magic marker line so the fret leveling is not undone). Second, I did not have to clean the Diamond version with a brass wire brush. Occasionally, I’d clean it with nylon bristles, though to be honest, I don’t think it needed such cleaning. The Diamond cuts nickel silver frets like butter. Third, the Diamond dagger has one feature the Dagger 2.0 does not have. The Diamond Dagger has 2 extra filing sides on the opposite end of the file (you have to see the pictures to understand what I mean). But this is great because sometimes I find that when crowning a fret my magic marker line in the middle of the fret is fatter/wider than at the ends of the fret. With the shorter filing side of the Diamond Dagger, I can work on just that middle section to make it have as thin a line as the other parts of the fret. This is really a great feature in my opinion and ergonomically both ends of the Diamond Dagger feel great in your hand (very comfortable and easy to maneuver). So, in conclusion, if you are working on Dunlop 6100/Jescar FW57110 frets the Diamond Dagger fits them like “hand to glove” and gives great results--even to hobbyists like me. The quality of both files is great, the prices are better than competitors; plus Bernie (the Fretguru owner) is a nice guy and very responsive to email. I emailed him with a question and needing some help and replied the same day. Finally, StewMac is great too; I love their products and customer service—but as many know they do have higher prices. All of that said, while StewMac’s Diamond Compact Z-File centered file will not work with jumbo frets, they do have other files that will (#4491, #5054, # 5183). I like both companies, but when it comes to my jumbo frets, the FretGuru Diamond Dagger is my new file of choice. Hope this was helpful for some of you.

### ⭐⭐⭐⭐⭐ It's super easy to use, huge difference
*by P***L on December 12, 2022*

I have a fantastic luthier, but he's so good he's always busy, so wanted to learn to do some stuff myself. This fret dagger is a fantastic little investment. I tend to make flat spots pretty bad on my frets with my weird crippled left hand, so I often need to do a quick re-crown during a string change to take out some buzz. This fret dagger works great and makes it real fast. Tape it up, check which side to use, paint 'em with the marker, and crown 'em quick. Hit 'em with the sanding sponge and 000 steel wool, clean and lemon-oil the fingerboard and the thing plays wonderful again. I can do that a good 4-5 times before having to do a partial re-fret at the luthier. I've had it about 10 months now, used it a ton, very happy with it. I make sure to clean it good with a brush after every fret, and the teeth on the thing seem to be lasting quite well. At the price, I'm not too worried about the teeth lasting, it's a good investment for my use case. Absolutely recommend the thing. Just a great tool to have when you've got some buzzing flat spots. Fully awesome at crowning the full fret levels I've done as well.

### ⭐⭐⭐⭐⭐ Great invention. Totally worth it!
*by J***E 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!

## Frequently Bought Together

- FretGuru Guitar Fret Crowning File - Dual Sided Dagger 2.0 - LG/XL and XXL/HUGE - Ideal for Frets between .095" to .118" wide - Professional Luthier Tool for Electric and Bass Guitars
- FretGuru Ultimate Fret End File 2 - Fix Sharp Fret Ends, Fret Sprout, Fret End Dressing File Pro Luthier Tool Guitar Tech [FINALLY AVAILABLE AGAIN - ADVANCED NEW DESIGN SHIPPING NOW]
- FretGuru 8-in-1 String Action Gauge Guitar Fret Ruler Precision Fret Rocker - Precise CNC Machined, Diamond Honed, Polished Edge Guitar String Height Gauge - Luthier Tool with Thick Leather Case

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-05*