Guitar Fret Crowning File,Fret End Rounded, Radius Slot&File,Multi Function

4. It is made of high carbon steel& firmly coated with diamond-like grits. the service of this file. 1. Four gauges slot are provided in 1mm,2mm,3mm,4mm. The 1mm slot works for extra narrow frets, likes ukuleles; The 2mm slot works for all standard guitars, , , mandolin, guitars; The 3mm,4mm slot works for jumbo frets. means it'll work on stringed instruments. 2. One flat file, works on fret and fret end round.You experience the efficiency of diamond. The hand is made of solid wood: and operation. 3. Diamond abrasive to coarse for this application, use fret erasers makes the frets as as buttery. 5.High Wear- and durability