Detail 01
Safe Zone channel
The channel arch has no diamond grit at its top, reducing the chance of filing that area.
Product detailSKU #1500000420648
Music NomadDiamond Coated Safe Zone Guitar Fret Crowning File (S-File)
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Independent shopping perspective
The Korena take
Music Nomad’s S-File is a diamond-coated fret crowning file built around a Safe Zone channel: the top of that channel has no diamond grit, reducing the chance of filing there. Its 240-grit diamond surface and filing-radius design are intended for fret crowning across all fret sizes. The offset shape adds leverage and helps clear a guitar body during work, while the silicone grip addresses hand fatigue. It is designed for nickel-silver fret wire; stainless-steel fret wire shortens its service life.
Strong match
Who this is for
- Crowning nickel-silver frets on acoustic guitars, banjos, ukuleles, and most electric or bass guitars.
- Spot-crowning work using the two alignment lines on the file nose.
- Fret maintenance where an offset file can clear the guitar body during filing.
Consider the trade-offs
When to look elsewhere
- Routine work on stainless-steel fret wire when maximizing file life is important.
- Use before checking an instrument’s fret specification when its fret-wire material is unknown.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
240 diamond grit
This is the file's listed abrasive grit.
Detail 03
Offset body shape
The design provides added leverage and clearance over a guitar body.
Detail 04
Two nose alignment lines
They are used to position the file for spot fret crowning.
Final check
Know before you order
- 01Check the instrument manufacturer’s fret specification before using the file.
- 02The file is designed for nickel-silver fret wire; stainless-steel fret wire shortens file life.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What fret sizes does the S-File handle?
It works on all fret sizes.
02Can I use it on stainless-steel frets?
Yes, but stainless-steel fret wire shortens the file’s life.
03What are the lines on the nose for?
They provide alignment for spot fret crowning.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Body Shape
- Offset
