Variable fret trimmer for stringed instruments allows mechanical complete raising and lowering of fret by stepless raising and lowering, where only selected frets are raised or lowered

摘要

The fret trimmer allows mechanical complete raising and lowering of fret by stepless raising and lowering, where only selected frets are raised or lowered. The fret trimming is allowed by raising and lowering of frets manually through the mechanics integrated in the neck of the instrument.