This complete set of tools makes it easy to get ultra-smooth frets
Fret Level + Dress Tool Set
How to Dress Frets: 14 Steps (with Pictures) - wikiHow
What is fret dressing? Can a beginner ruin a guitar trying to do it on their own? - Quora
What a difference a great fret dress and setup make!
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Guitar Repairs & Service
Maverick, fret-dress and setup
Fretwork - Southeast Guitar Repair