StewMac Double-edge Diamond Fret Files

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20% OFF + FREE SHIPPING*
Special offer ends August 14, 2026 at 4:00PM ET

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StewMac Double-edge Diamond Fret Files, 300-grit Narrow/Medium
300-grit Narrow/Medium Item # 5075 No longer available
$103.99
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StewMac Double-edge Diamond Fret Files, 300-grit Wide/Jumbo
300-grit Wide/Jumbo Item # 5076 No longer available
$92.54
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StewMac Double-edge Diamond Fret Files, 150-grit Narrow/Medium
150-grit Narrow/Medium Item # 5077 No longer available
$88.13
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StewMac Double-edge Diamond Fret Files

Diamond fret files are the best way to crown your frets!
Unlike traditional fret files, diamond files cut in both directions, they don't chatter, and the fret is smoother after crowning. These files are being used by repair shops and major manufacturers all around the world.

Long-lasting diamond coating
Each file edge is electro-coated with micro industrial diamonds. These super-tough abrasive surfaces round the frets more smoothly and stay sharp longer than standard toothed files.

Better control, faster work
Diamond particles cut on both the push and pull stroke (traditional files only cut one way). This gives better control over your work, and the job goes much faster.

Double-edge covers more instruments
Each file has hollow-ground cutters in two sizes for crowning a variety of fretwire. Narrow/Medium files are for mandolin, banjo and guitar fretwire. Wide and Jumbo are for guitars and basses.

  • Made of tool steel
  • 300-grit diamond coated edge
  • Comfortable rubber-coated handle
  • File cutting edge: 4" (101.60mm)
  • Overall file size: 7-3/8" x 5/8" (187.33mm x 15.88mm)

Works on stainless frets, too!
All of our tools are suitable for use on stainless-steel fretwire*. 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.
*Excludes our original Fret Tang Nippers. We recommend our Deluxe Fret Tang Nippers for stainless-steel fretwire.