Ex Factor – Extended E fret and Zero Nut Fret is .118” wide x .058” tall (Dunlop 6000). All other frets are .103” wide x .046” tall (Dunlop 6155).
Factor 34” – .103” wide x .046” tall (Dunlop 6155)
Fretless Ex Factor – Extended E fret and Zero Nut Fret are .106” wide x .036” tall (Dunlop 6130)