Quarter-round Fret File

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Quarter-round Fret File

Item # 4089
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Quarter-round Fret File

About This Item

Shapes the sides of the frets. This unique fret file lays flat on the fretboard to shape frets from the sides.

Quarter-round concave filing surfaces are at each edge of this unique fret file. The smooth flat underside minimizes fretboard marring while rounding the fret ends.

Each smooth-cut filing surface is 4-1/2" long and extends approximately .080" above the fretboard. The file is 3/8" wide, and is fitted with a turned hardwood handle and brass ferrule.

Designed by master luthier Michael Gurian.

Works on stainless frets, too!
All of our tools are suitable for use on stainless-steel fretwire, with the exception of our Fret Tang Nippers. Modern stainless-steel fretwire is known to be harder than the traditional nickel-silver blends, but our own shop experience indicates the wire does not cause premature wear of files or sandpapers.

Trade Secrets!

Trade Secrets!

How to choose a fret-crowning file

Erick Coleman answers an important tech-support question: What's the best fret-crowning file?

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  • 4.40 average rating from 10 reviews
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Great File!

(Customer's Reviews)

Good file. I must first state that my experience is limited in fret-work. I'm just now getting comfortable with it. Have 3 crowning files. The medium triangular file, a double sided non-diamond file and the quarter round. I haven't got the hang of crowning with the triangular file yet, but I can see that file being great once I get the feel for it. The double sided file shapes the fret very easily, but since I can't see the top of the fret all the time while using it, I tend to be less accurate and sometimes take too much off. Do that one time, get that one fret too low, and you have to start all over. The quarter round file is very easily controlled just by leaning it into the fret to varying degrees, so I can control the shape more than with the double sided one, not as much as the triangular one. Of course I can see what I'm doing at all times and it works great for rounding the ends also. Should have bought this one first, because it may be the last I need to buy. Used it last on this parts-caster build. Sonic Blue nitro!


Fret end wonder!!!

(Customer's Reviews)

Amazing tool for rounding fret ends. I've own all and tried most other files for rounding ends. This one is the best by far!


Amazing Quarter-round Fret File

(Customer's Reviews)

Wow look at photo

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StewMac PDF Catalog, page 12 See Quarter-round Fret File
on page 12 of our StewMac Catalog PDF

12MB File

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