Come si usa LittleBone Fret File
(in traduzione)
Before using the LittleBone, cover the fretboard with masking tape to protect it. Also check out the bottom of the file. Simply slide the file on a flat, hard, glossy surface of scrap material and make sure it doesn't leave any lines or scratches.
How to use the Littlebone Fret file and the LittleBone ice
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