- Hardened steel.
Fret Crowning File System. Changeable DIAMOND File 2.0mm wide TF088_20
Fret Crowning File System. Changeable DIAMOND File 2.5mm wide TF088_25
Guitar Fret Crowning File. 2.5mm concave profile diamond file. UK MADE TF080
Fret Crowning File System. Changeable DIAMOND File 3.0mm wide TF088_30