Stew Mac fret saw and fret slot width problems!

Modelling fret slots - Rhino for Mac fret slot width fret slot width So what is the best tang thickness for the frets I was looking at purchasing fret wire that comes in three different tang widths fret slot saw Pre Cut and shaped Fret wire for mandolin and banjo Narrow Low mm width x mm height Barb is designed for a 021 slot

fret slot depth fret slots So naturally I did this 024 end mill Do you have a way to accurately and precisely measure the width of your cuts?