When I left off, I had just finished pressing 22 stainless steel frets into the maple fingerboard of an ’83 Squire Telecaster. The next job is to file down the fret ends. They are sharp now and easier to work on after this step. Using a smooth-cut file, I ride down the little tabs of the frets along each edge of the fretboard. Don’t over-do it. Make passes in the “cut direction” of the file until the edges of the fingerboard feel smooth.