JS100 Hardness Testing Files
40 RC to 65 RC Rockwell C Scale, Testing File Set
High quality hardness testing files feature specially curved tips for testing internal slots, and grooves as well as your knife blank.
Files have non slip grips and are color coded handle with Rockwell value printed on each handle for quick and easy selection. Files come in a custom fitted case with complete instructions and conversion chart for Rockwell to Vickers.