The Hosco Diamond Fret Leveling And Crowning File combines 2 jobs in 1 file, the flat side levels the frets and the edges of the file have concave cutting surfaces for crowning the levelled frets. The 2 crowning edges are different radius sizes, 2 mm (0.08") and 3 mm (0.12") to cover medium size up to jumbo size fretwire, giving maximum versatility.

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