Guitar Fret Crowning Edge File with 3 Crowning Grooves & 1 Full Flat Grit Side, Mini Diamond Guitar Fret End Dressing File, Professional Luthier Repair Tool for Guitar, Bass, Ukulele, BanjoFeatures:  This mini fret crown & fret edge file has 1 flat side and 3 notch sides Each side has a 236 inch long file There are total 4 files on it 236 inch ..