For 200 years, PFERD has been manufacturing files of a world-renowned high quality. The experience gained over many years as a manufacturer is constantly used for the development of PFERD files. Application-oriented file shapes and cuts for industry and crafts guarantee good economic value. Even after long use, PFERD files achieve high stock removal rates and an excellent surface quality. 13/64" files are used to sharpen 3/8 pitch chainsaw chain.