Ibanez produced the 4449EG6X Prestige Nut File Set as a six-piece filing set sized specifically for electric guitar string slots, covering the gauges used across a standard light-to-medium string set.

The set comprises six files sized at .009, .011, .016, .024, .032, and .042 — corresponding to individual string gauges from the high E through the low E on a six-string electric guitar. Each file is matched to a specific string diameter, allowing precise slot widening or shaping without disturbing adjacent slots.

Nut work is among the more exacting tasks in guitar setup; owners needing slot adjustment, replacement nut fitting, or relief cuts are advised to consult a qualified luthier or guitar technician familiar with Prestige-specification instruments.