Hirschfeld files are used in periodontal procedures with the aim of facilitating the smoothing of surfaces while scaling. The final part of the ends are sharply pointed and finely knurled, and they are available in various shapes

The Buck Model OF periodontal file has two serrated cutting edges, one of them straight, and the other angled

Sugarman and Schluger periodontal file

Double-tipped periodontal files, featuring a large, serrated cutting portion, designed for the removal of granulomatous tissue in supra-osseous and infra-osseouspockets.