A versatile no-chatter file for crowning frets. Steel insert with 150 and 300-grit industrial diamond-coated concave cutting surfaces in ONE file for crowning frets. It's angled shape gives extra clearance over the guitar body at higher frets.
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Dan Erlewine's Fretting Series
Complete instruction from fret basics like installation and dressing, through complex refrets and fretting for the production shop.