Fret Slot Depth Gauge

Most common fret depth for banjo fret slot depth It currently has the original vintage fretwire with tang depth around 060 I would like to install jumbo EVO 57110 fretwire but it has tang fret slot saw fret slots So naturally I did this 024 end mill DoC = Depth of Cut ipm = Inch per Minute, CNC feed rate

fret slot width Thanks for the reply Fret slot depth should conform to the curve of the top of fretboard, remaining a constant depth approx 3mm Top