PFERD offers file handles in different versions and dimensions. From wooden handles for chain saw files to ergonomic file handles for machinist's files, sharpening files or rasps, to quick-mounting handles for needle files or precision files, PFERD has handles for a wide variety of files. Ergonomic file handle for comfortable and safe working. The chain saw gauge provides the correct sharpening angle to result in consistent sharpening. It attaches to the stud of the ergonomic file handle 17046. This sharpening gauge provides a 25°/30° angle.