Accurately true or change a fingerboard's radius
These 8" radius-sanding blocks are for consistent, full-fingerboard radius leveling of frets or fingerboards when used with sandpaper.

They create an accurate playing surface radius, quickly and without guesswork.

Each hardwood block is 8" (203.20mm) long and 2-3/4" (69.85mm) wide. Tip: It's a great clamping caul for glue-in fret jobs, too. Cut and stick!  3M Stikit Gold Paper Self-adhesive Abrasives are the right width for our leveling and radius sanding tools. Attach 80 through 320-grits for radiusing and leveling the fingerboard