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  • VIDEO
Master Fret Crowning with Safe Zone S-File by MusicNomadSF Marketing Inc. (CA)
  • MusicNomad MN850 Diamond Coated, Safe Zone Guitar Fret Crowning File (S-File)
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MusicNomad MN850 Diamond Coated, Safe Zone Guitar Fret Crowning File (S-File)

4.7 out of 5 stars 225 ratings
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  • 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.
  • WORKS ON ALL FRET TYPES: It works amazing for crowning all fret material found on guitar, bass and other stringed instruments, including stainless steel. Our exclusive nose design features two lines for spot fret crowning. Position the line to be 90 degrees(straight up) from the frets and you will just be filing right where the line intersects with the fret. It's so simple but functional. Our high quality manufacturing process includes radiused & beveled edges along the entire perimeter for the comfort and safety of your fretboard.
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Product information

Technical Details

Product Dimensions ‎22.23 x 3.48 x 0.43 cm; 181 g
Item model number ‎MN850
Body Material ‎Silicone
Colour Name ‎S-file
Item Weight ‎181 g

Additional Information

ASIN B0CS12ZY7C
Customer Reviews
4.7 out of 5 stars 225 ratings

4.7 out of 5 stars
鶹 Rank
Date First Available Jan. 25 2024
Manufacturer MusicNomad

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MusicNomad MN850 Diamond Coated, Safe Zone Guitar Fret Crowning File (S-File)

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Product description

Diamond Coated, Safe Zone Guitar Fret Crowning File (S-File) Say no to black markers, constantly checking and worrying about overfiling, MusicNomad takes fret crowning to the next level with our game-changing patent pending Safe Zone "S-File". Packed with so many unmatched features and benefits, we can't even list them all here. It starts with our safe zone innovation that has no diamond grit at the top of the arch of the channel, eliminating the chance of overfiling...YES!!! Our Safe Zone filing design reduces the fret crowning learning curve from weeks to hours. Our premium 240 diamond grit combined with the ideal filing radius design gives you the perfect cut every time. The S-File works on all fret types and sizes, has custom lines on the nose for spot crowning, a wide channel that is not too flat, a common complaint of other crowning files, a convenient hang hole, and so much more. Don't lose it or loan it, you'll look forward to the next time you crown your frets. That's MusicNomad quality, bringing fret care to the next level.

From the manufacturer

MusicNomad MN850 Main

Diamond Coated, Safe Zone Guitar Fret Crowning File (S-File)

Say no to black markers, constantly checking and worrying about overfiling, MusicNomad takes fret crowning to the next level with our game-changing patent pending Safe Zone "S-File". Packed with so many unmatched features and benefits, we can't even list them all here. It starts with our safe zone innovation that has no diamond grit at the top of the arch of the channel, eliminating the chance of overfiling...YES!!! Our Safe Zone filing design reduces the fret crowning learning curve from weeks to hours. Our premium 240 diamond grit combined with the ideal filing radius design gives you the perfect cut every time. The S-File works on all fret types and sizes, has custom lines on the nose for spot crowning, a wide channel that is not too flat, a common complaint of other crowning files, a convenient hang hole, and so much more. Don't lose it or loan it, you'll look forward to the next time you crown your frets. That's MusicNomad quality, bringing fret care to the next level.

MusicNomad MN850 closed

Avoid Overfiling Frets

The innovative patent pending Safe Zone provides a small strip of no diamonds that prevents you from overfiling the frets.

MusicNomad MN850 use

Ergonomic Handles Makes a Big Difference

The ergonomic silicone lined handle enhances comfort and control while performing fret crowning work. You will really appreciate the offset handle design that provides added leverage and clears your hand when filing over the body.

MusicNomad MN850 use 2

The Benefit of Diamonds

Premium 240 grit diamonds are applied to the file for superior filing action. The diamonds cut in both directions for faster crowning, unlike common toothed files that cut in only one direction.

MusicNomad MN850 use 3

Spot Fret Crowning

The exclusive nose design features two lines for spot fret crowning. Position the line to be 90 degrees (straight up) from the frets and you will just be filing right where the line intersects with the fret.

MusicNomad MN850 use 4

Works on All Frets

Perfect for narrow, medium, wide and jumbo frets across all fret material types, including stainless steel.

MusicNomad fret care image

Next Level Fret Care Family of Products

Make sure you check out our full range of MusicNomad Next Level Fret Care Products, from our innovative Fret Shield to our ergonomic Fret Leveling Beams.

Diamond Coated Fret End Dressing File (E-File)
Precision Fret Beveling File (B-File)
KEEP IT SIMPLE, SETUP (KISS) Starter Kit Bundle
Fret Leveler - Leveling (L-Beam)
FRINE Fret Polishing Kit 5 PC.
Diamond Coated Nut Files – Available in 16 Sizes & Custom Kits
Customer Reviews
4.6 out of 5 stars 195
4.6 out of 5 stars 195
4.6 out of 5 stars 273
4.8 out of 5 stars 168
4.5 out of 5 stars 1,788
4.8 out of 5 stars 121
MusicNomad Accessories Gear Guide Filing fret ends just got a whole lot easier and safer with MusicNomad's Diamond Coated "E-File" Fret End Dressing File. From top to bottom, no detail was overlooked in designing the perfect solution to fix fret sprout & sharp fret ends. Filing fret ends with a consistent angle and finish has never been easier with MusicNomad’s B-File. With the ideal 23° and 3° file angles, no detail was overlooked in designing this revolutionary bevel file. Includes: Guitar Tech 26 pc. Screwdriver & Wrench Set, Guitar Tech 11 pc. Truss Rod Wrench Set & The 6 pc. Precision Gauge Setup Set includes a: Truss Rod Gauge, Pick Capo, String Action Gauge, 2 Radius Gauges, & Nut Height Gauge. With three sizes to choose from, 7" (18cm), 17.6" (45cm), and 24" (61cm), ensuring precise accuracy with fewer strokes. Great for leveling unfretted fingerboards too! Complete 5 pc. Fret Polishing Kit including FRINE Fret Polish, 3 Innovative Fretboard Guards, Polish Cloth. 16 sizes to choose from starting with .010” up to .130”, they work great for electric, acoustic & classical guitars & even 5 string basses. Features a revolutionary diamond coating & round string shape blade design resulting in smooth, precision cut.

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