- Coarse, medium, fine or superfine grade
- Professional fret finish, easily
- Quickly gets rid of sanding marks
- Follows fret shape and will polish every surface
- Made entirely in the UK by luthiers
Crimson's new & improved steel fret rocker, now with 5 precision ground straight edges, is the first rocker to work on Guitars, Bass Guitars and Mandolins, (and other short scale instruments).