For platinum, stainless steel, exotic plastics and other hard to file materials. The hardest surface known
Rockwell hardness 72HRc. Best performance on hard-to-file surfaces. Cut 0 has blunt end. Cut 2 has pointed end.Little or no clogging, a simple knock is enough to remove the chips. Highly resistant to corrosion. Files have a length of 6" and a diameter of 1/2". Swiss made.