Why are nut files so expensive?? - Repairs and Technical

Hosco Nut Slotting File - Set of 10 nut slot files You can make almost all of the guitar nut files you ever need in minutes, for peanuts Tip Cup nut slot depth Cheap nut slotting files? I can't believe how ridiculously expensive files designed for slotting guitar nuts are Surely the same type of

nut slot files Edge-cut nut files produce round-bottom slots for nuts and saddles Edge cut nut files in popular gauges specially designed for slotting nuts