Layout Aid for Drawing the Fret Height on the Nut

Layout aid for drawing the fret height on the nut.Using the layout aid for drawing the fret height on the nut.This is a layout aid to draw the fret height on the nut. It is just a block of wood with a small groove that holds a 0.5mm lead from a mechanical pencil. Draw a second line to denote the string depth by taping a 1/16" brass shim to the underside.