---
product_id: 606818939
title: "Diamond Coated, Safe Zone Guitar Fret Crowning File (S-File)"
brand: "musicnomad"
price: "₱11108"
currency: PHP
in_stock: null
reviews_count: 13
category: "Music Nomad"
url: https://www.desertcart.ph/products/606818939-diamond-coated-safe-zone-guitar-fret-crowning-file-s-file
store_origin: PH
region: Philippines
---

# 240 grit premium diamond coating ergonomic silicone grip handle patent-pending Safe Zone anti-overfiling tech Diamond Coated, Safe Zone Guitar Fret Crowning File (S-File)

**Brand:** musicnomad
**Price:** ₱11108
**Availability:** ❌ Out of Stock

## Summary

> 💎 Elevate Your Fret Game: The Ultimate Crowning File for Flawless Playability

## Quick Answers

- **What is this?** Diamond Coated, Safe Zone Guitar Fret Crowning File (S-File) by musicnomad
- **How much does it cost?** ₱11108 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/606818939-diamond-coated-safe-zone-guitar-fret-crowning-file-s-file)

## Best For

- musicnomad enthusiasts

## Why This Product

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

## Key Features

- • **Diamond Efficiency:** 240 grit premium diamonds cut fast and smooth in both directions, slashing your fretwork time.
- • **Dual-Channel Design:** Two radius-matched channels for narrow/medium and wide/jumbo frets—fits every guitar profile flawlessly.
- • **Precision Perfected:** Patent-pending Safe Zone stops overfiling—file, skate, and move on with confidence.
- • **Ergonomic Power Grip:** Heavy, offset silicone handle reduces hand fatigue and provides superior leverage for effortless filing.
- • **Pro-Level Versatility:** Ideal for Nickel Silver frets on acoustic, electric, bass, banjo, and ukulele—spot crowning made foolproof.

## Overview

The MusicNomad MN850 Safe Zone S-File is a premium diamond-coated fret crowning tool engineered with a patent-pending anti-overfiling Safe Zone, dual-radius channels for all fret sizes, and an ergonomic silicone handle. Designed in collaboration with top luthiers, it delivers fast, precise, and fatigue-free fretwork on Nickel Silver frets across multiple string instruments, making it an essential upgrade for professional and hobbyist guitar techs alike.

## Description

Buy MusicNomad MN850 Diamond Coated, Safe Zone Guitar Fret Crowning File & Luthier Tool (S-File): Tools - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Fantastic quality to performance ratio.! - Fast safe shipment. Expensive. Diamonds are a machinest best friend.!! Diamonds cut efficiently, effortlessly.!! Fantastic quality to performance ratio.! Very comfortable thick silicone jacket. Clever flip flop size design. Fool proof design. Simply glide across worn/ grooved frets. Automatically restores the fret profile ratio. A must have fret or any radius contour tool. Keeps your guitar in perfect playing condition.!!!
Review: Takes the WORK out of fret work - Another GREAT music nomad product. This is a game changer for me. Its so simple to use and virtually error proof. I used it as soon as I received in on my 90s MIJ Jackson Performer RR V. I did a spot level on 4 of the frets. This tool worked perfectly for both crowning an entire fret and spot crowning. Its also set up to knock down rough fret edges although I didnt have that issue to address. Its has some weight to it, its durable, feels high quality, and the rubber grip makes it VERY comfortable to work with. I had the crowning work done in no time. It may seem pricey at almost $100, but good tools are worth the money - not to mention the time and effort you will save using this file for your fret crowning work. Its a HIGH QUALITY tool that simplifies fret work that is critical to the playability of the instrument and costly if the fret work is not done properly. Its a MUST HAVE tool on your bench.

## Features

- A TRUE GAME-CHANGER: Designed by our Sonoma, CA team and in collaboration with top repair techs, the Safe Zone S-File sets a new higher standard for what you should expect when you buy a Fret Crowing File. No detail is overlooked, and it is packed with unmatched features and benefits.
- WHY DID I NOT THINK OF THE SAFE ZONE?: The patent pending Safe Zone innovation prevents you from over filing. At the top of the file, there is a small strip where there are no diamonds. Once you perfectly sculpt and round both sides of the frets, the S-File stops filing and skates on top of the fret. You can hear and feel the difference and it's time to move to the next fret. It's that simple...File-Skate-Go! The premium diamonds make both fast and precision filing. Whether you are a seasoned tech or new to fret crowing it reduces the learning curve from weeks to hours.
- THE PERFECT DIAMOND FILE DESIGN: The 240 grit premium diamond coating is perfectly rounded to closely match the original radius of your frets. One channel is for narrow/medium frets and the other is for wide/jumbo frets. After hearing many repair shops complain the wide side of existing files are too flat to use, we increased the roundness of our wide channel to improve the functionality. Additionally, our diamond file cuts in both directions, speeding up the process, unlike toothed files that cut in only one direction.
- BIG IMPROVEMENT OVER EXISTING HANDLE DESIGNS: Our comfortable, heavy, ergonomic handle design makes such a big difference. It starts with our innovative blue silicone comfort grip that reduces hand fatigue. The offset design provides both added leverage when filing and allows you to clear the guitar body when filing over it. Weight makes a difference. We beefed up our design so the weight of the S-File does the work for you and is in a weight class by itself at .38 lbs (173g). Lastly, the fret size channel application is engraved in the handle so it won't rub off, allowing you to know the correct file size to use. We even include a convenient hang hole.
- ADDITIONAL FEATURES & BENEFITS: It works amazing for crowning the most popular & widely used fret wire material, Nickel Silver, found on all Acoustic Guitars, Banjos, Ukuleles and most Electric & Bass Guitars. As with any file, using on Stainless Steel fret wire will shorten the file life. Stainless Steel is used on a small percentage of Electric and Bass Guitars. Our exclusive nose design features two lines for spot fret crowning. Position the line to be 90 degrees from the frets and you will just be filing right where the line intersects with the fret. Our high quality manufacturing process includes radiused & beveled edges along the entire perimeter.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CS12ZY7C |
| Best Sellers Rank | #1,564 in Musical Instruments ( See Top 100 in Musical Instruments ) #25 in Guitar Tools |
| Body Material | Silicone |
| Color Name | Blue |
| Customer Reviews | 4.6 4.6 out of 5 stars (262) |
| Date First Available | January 10, 2024 |
| Item Weight | 6.4 ounces |
| Item model number | MN850 |
| Material Type | Diamonds, Silicone |
| Product Dimensions | 8.75 x 1.37 x 0.17 inches |

## Images

![Diamond Coated, Safe Zone Guitar Fret Crowning File (S-File) - Image 1](https://m.media-amazon.com/images/I/61xkuFjWYKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic quality to performance ratio.!
*by S***3 on January 11, 2026*

Fast safe shipment. Expensive. Diamonds are a machinest best friend.!! Diamonds cut efficiently, effortlessly.!! Fantastic quality to performance ratio.! Very comfortable thick silicone jacket. Clever flip flop size design. Fool proof design. Simply glide across worn/ grooved frets. Automatically restores the fret profile ratio. A must have fret or any radius contour tool. Keeps your guitar in perfect playing condition.!!!

### ⭐⭐⭐⭐⭐ Takes the WORK out of fret work
*by A***R on July 8, 2024*

Another GREAT music nomad product. This is a game changer for me. Its so simple to use and virtually error proof. I used it as soon as I received in on my 90s MIJ Jackson Performer RR V. I did a spot level on 4 of the frets. This tool worked perfectly for both crowning an entire fret and spot crowning. Its also set up to knock down rough fret edges although I didnt have that issue to address. Its has some weight to it, its durable, feels high quality, and the rubber grip makes it VERY comfortable to work with. I had the crowning work done in no time. It may seem pricey at almost $100, but good tools are worth the money - not to mention the time and effort you will save using this file for your fret crowning work. Its a HIGH QUALITY tool that simplifies fret work that is critical to the playability of the instrument and costly if the fret work is not done properly. Its a MUST HAVE tool on your bench.

### ⭐⭐⭐⭐⭐ The best crowning file, giving accurate results made easy
*by R***S on August 4, 2024*

I have 3 other crowning files similar to the music nomad s file, But similar is a vague statement? The design of the music nomad s file is pretty much fool proof compared to others, it leaves a nice even crown and does not take off the top of the frets after doing a fret leveling. I literally tried fairly hard to see if I could remove some of the top using a marker on top of a fret, and what I ended up with was a very fine bead on top of the fret, after doing this I used a fret rocker to confirm that the top of the fret was level with the fret before and after the fret I just crowned using the music nomad s file and the results were absolutely even all the way across the fret, so I proceeded to crown All existing frets checking each fret after the entire neck of fret leveling was finished..? The results were every single fret remained absolutely even! Now all my fret crowning files can do an okay job, but guaranteed none except for the music nomad s file can yield perfectly even results, and I am impressed to say the least. If you have never done a fret crowning Job, by a fret leveling beam, fret rocker, maybe a fret kisser for spot leveling,(I bet music nomad will come out with a spot leveling tool soon) a fret hammer, some 1000 grit sandpaper, 2000 grit sandpaper, (#0000 steel wool optional if you don't like using sandpaper to polish out the frets) before doing a fret leveling Job remove your strings, adjust truss rod to get the neck as flat straight as possible ( use a straight edge or notched straight edge to check this)make sure all frets are properly seated using a fret hammer tapping lightly (you might use a little wood glue or some type of super glue if frets won't stay seated) check every 3 fret span using a fret rocker, painter's/ masking tape between All frets, Mark fret tops with a blue marker, take your fret leveling beam and start with maybe 300 or 500 grit adhesive strips on sanding beam, proceed with even number of strokes getting All frets, look for marking pin tops that have marking pen on top, keep working the beam until marking pen is gone off frets, check every 3 fret span with fret rocker, all should be level at this point, take the music nomad s file and match the file side to your frets narrow and tall are common on fender/squier.. but check with manufacturer for the fret wire gauge, example, narrow and tall, medium jumbo etc. Go across each fret using the music nomad s file util the grinding sound changes to smooth sound, use 1000 grit to smooth out any filing scratches, then 2000 to get some shine, use some frine fret Polish, wipe off, remove masking tape, use some fretboard conditioner like f-one wipe off, restring and retune and your guitar will play as smooth as butter. There are some good YouTube videos by music nomad for all this and more... But the music nomad s file is simply unbeatable and fail proof, which Will give even beginners the confidence to go forward and giving there guitar a custom shop feel and optimum playability, intonation, and buttery smooth bends and playing in general..

## Frequently Bought Together

- MusicNomad MN850 Diamond Coated, Safe Zone Guitar Fret Crowning File & Luthier Tool (S-File)
- MusicNomad Fret Leveler - Leveling (L-Beam) 17.6" (45cm) for Acoustic and Electric Guitars (MN811)
- MusicNomad Tracers Fret Erasers 6 pc. Finishing Kit for Sanding, Buffing and Polishing after Fret Crowning, Dressing or Beveling (MN860)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-01-24*