Nut files are for maintaining the nut on your guitar. Filing the nut makes it smoother, which will help stabilize tuning.
*Not usable on double locking guitars.
for Jumbo fret
for Large fret
for Small fret
for El.Guitar (.009/.011/.016/.024/.032/.042)
for El.Guitar (.010/.013/.017/.026/.036/.046)
for El.Bass (.032/.045/.065/.085/.105/.130)
for Ac.Guitar (.012/.016/.024/.032/.042/.053)
for Cl.Guitar (.028/.032/.040/.029/.035/.042)
for 7/8/9 String El.Guitar (.054/.065/.075/.090)
for Ukulele (.025/.032/.036/.028)
Fret File / 3pcs set