Fretwire dimensions vs fretboard slot dimensions

fret slot width   Dan fret slot depth

Their tang width can vary from 020 to beyond 023 The best thing to do is know what type of fretwire you are using and get measurements

The fret slots are about wide while the narrow fret wire I would like to use has a tang width of I've tested the fret wire fit It's hard to tell from the picture, but I'm guessing you're around 132 wide on the slot That's ~ 031, and the blades for fret slotting are

wizard of oz wicked riches slot It all starts with the fret slots They must be cut precisely and have a uniform width along their entire length You can cut them by hand (see my fret saw Also, as a brief answer to this topic, the standard seems to be a 020 tang in a 023 slot So the slot should be 003 bigger than the tang