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. Swiss made. Length of files is 6".