By A Mystery Man Writer
Spot leveling frets.
Understring Leveling Beam & String Change / Tension
Stewmac/Matt Vinson Style Neck Jig, Page 2
How does the action (distance between fret and string) of a guitar affect the tone/sound/timbre? - Quora
Taking the plunge - Fret Crowning File
R.M.KATANA - RECTIFY Master - fret leveling with strings on
R.M.LITE - fret leveling with strings on™ - Since 2010
The Poor Man's Plek Innovation Fascinations
FRET-RAIL, - Rectify Master - fret leveling with strings on