For me it's a two step process. First thing I do after installing the frets is to use the same file that I use to level them with to file them smooth down to the fingerboard edge, and then to bevel them, running the file at an angle lengthwise down the edge of the fingerboard. That establishes the initial geometry.
I have one of
LMI's FFR fret rounding files that I use for recrowning the frets after levelling them. I also have one of LMI's 3-cornered files modified especially by LMI for shaping the fret ends. It works okay, but I discovered a much easier way to round off the ends of the frets, which have already been beveled using the procedure I mentioned above. I just roll the FFR file over the ends of the frets, and it puts a nice smooth rounded contour onto them. Then I go back over them with a hard foam sanding pad and 600 grit paper, followed by steel wool. Fast, looks good, feels fine.
Best,
Michael
Michael McBroom38634.8082060185