We have been improved this fret crowning file with more deeper grooves and more finer grits based on the current complain that report this fret file will remove the top of the frets. This is a fret crowning file, can not use for other purpose.
The tool is well made and I have talked to other guitar techs that use it with great success. After leveling the frets, I then shaped them to 80% with the Baroque Fret Crowning tool. Finished shaping with steel wool then a final polish with brown metal polish on a moto tool.
The Baroque works FAST, so follow the radius with light pressure and clean after two strokes. It works fast.
I am very pleased with this fret crowning tool.