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Item #:
29880064
FretGuru SharkFin Guitar Fret Crowning File | Professional Luthier Fret File | Top-Down Ergonomic Control | D.I.A. Geometry | Razor-Thin Crowns for
85% of respondents would recommend this to a friend
Item #:
29880064
XCD 215
Price Details
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Order now and get it around Saturday, September 12
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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.
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What Stands Out
Precision Engineering
The FretGuru Fret Crowning File features a diamond-coated surface that ensures ultra-precise fret crowning, providing musicians with incredible accuracy for optimal playability and sound quality.
Versatile Compatibility
Designed for all types of guitars, including electric, acoustic, and bass, this tool effectively works on MD, LG, and XL frets, making it an essential for luthiers and guitar enthusiasts alike.
Durable Construction
Crafted with quality materials, the diamond dagger fret file guarantees long-lasting performance, allowing guitar technicians to achieve professional results without frequent replacements, ensuring great value over time.
Product Details
| Product Dimensions (L x W x H) | 4.15 x 1.3 x 1.87 inches (10.5 x 3.3 x 4.7 cm) |
| Date First Available | February 28, 2026 |
| Body Material | Steel |
| Color Name | SHARKFIN-MD-LG |
| Material Type | Steel |
| Package Weight | 1.0000 Pound (450 grams) |
| Color | sharkfin-md-lg |
Product Description
FretGuru SharkFin Guitar Fret Crowning File | Professional Luthier Fret File | Top-Down Ergonomic Control | D.I.A. Geometry | Razor-Thin Crowns for Guitar & Bass Frets | MD/LG/XL
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the exclusive D.I.A. cutting geometry?
Answer: It is a cutting design that provides better cutting control, accuracy, and finish than any other file. -
Question:
Why are precise fret centerlines important?
Answer: Precise fret centerlines are important for accurate fret crowning and better guitar tone. -
Question:
Are the edges of the file smooth and contoured?
Answer: Yes, the edges are designed to prevent damage to frets and the fretboard. -
Question:
Will this tool work for stainless steel frets?
Answer: Yes. It will work but may require more effort and may wear out the tool faster. -
Question:
Will it work on low narrow frets on mandolins?
Answer: The FretGuRu Crowning File is compatible with 6105 medium-large and 6100 large and extra frets. -
Question:
How long should it last if used on multiple necks?
Answer: With proper maintenance, it should last a lifetime. Regular cleaning with a brass brush and chalk and storing in a dry place will help prolong its lifespan. -
Question:
Is the medium/large channel smaller than the original FretGuRu Crowning File?
Answer: The channels may still be too big, causing annoyance to some users. -
Question:
Will this work on a Taylor with 6230 fret wire?
Answer: It should work, but success may vary based on individual skill level. The control provided by the Fret Guru may help achieve good results. -
Question:
Can beginners use this with a leveler for fretwork?
Answer: This file may not be suitable for beginners as it can easily clog and chatter if not used carefully. -
Question:
Will this work on a 5-string banjo?
Answer: Yes, it is compatible with a 5-string banjo. -
Question:
Will the smaller side of the file work on vintage tall frets on a new neck?
Answer: If the Fret Guru file cannot do the job on narrow vintage frets, it is unlikely that any other file will be more effective. -
Question:
Does this tool work for fret ends as well?
Answer: It is not recommended to use a fret crowning file for fret ends. It is better to use a dedicated fret end file for this purpose.
FretGuru Tools Editorial Review
This crowning file is highly reviewed by customers as a precise and well-made tool which enables crowning even on narrow and high frets. The two ends on the file make it adaptable to various fret sizes and it leaves a smooth surface compared to other similar file brands.
Customer Reviews & Ratings
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Pros
- Perfect for crowning on narrow and high frets
- Well made and precise
- Leaves a smooth surface
- Two ends for convenient use
Cons
- Clogs up easily, needs cleaning after each use
Platform Trust & Buyer Confidence
JG
Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
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Emmanuel
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“I always receive support when I engage customer service. Overall my experience with UBUY has been top notch. Keep up the good work.”
31 August 2026 · via Trustpilot
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fnd
Verified buyer
“The delivery was fast and the product came undamaged and authentic.”
29 August 2026 · via Trustpilot
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25 August 2026 · via Trustpilot
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Hengo
Verified buyer
“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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XCD 215
Order now and get it around Saturday, September 12
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Features & Benefits
- New FretGuru file has improved performance
- Exclusive D.I.A. cutting geometry gives precise cutting control, accuracy, and finish
- Ideal-yet-elusive HOLY GRAIL for accurate fret crowning achieved
- Smooth beveled, contoured edges prevent damage to frets and fretboard
- Precisely leveled and crowned frets are crucial for great guitar tone
- Faster and easier to use, with greater efficiency
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