Test your knife hardness on the Rockwell C scale with this testing file set.

Files from 40 RC to 65 RC are included in a soft zipper case for easy storage and travel.

These quality hardness testing files feature specially curved tips for testing internal slots and grooves as well as your knife blank. 

Color-coded handles labeled with the Rockwell value make selecting the right file simple, and the handles have non-slip grips for ease of use.