Straight Diamond Fret Crowning File - Dual Width 150 Grit – recommended for fast material removal Dual Sided with 2 widths Works with Medium, Wide, and Jumbo Fretwire Steel body with concave grooves coated with industrial-grade diamonds Overall dimensions is 8” x 5/8” x 3/16” (240mm x 15mm x 4.3mm) Diamond files will cut in both directions, cut faster, and don’t chatter or leave chatter marks.    For beginners, we recommend the 300 grit diamond fret crowning file because it’s not as aggressive as the 150 grit file.

Diamond files will cut in both directions, cut faster, and don’t chatter or leave chatter marks.   

For beginners, we recommend the 300 grit diamond fret crowning file because it’s not as aggressive as the 150 grit file.