File Filosophy
Being some Hints regarding the proper Methods of using Files and the various Applications of the most common Files

FILE FILOSOPHY A statement of some of the common lines of work upon which the file is used then concludes the treat- ment. We preface this entire chapter with a brief General Description which shows how files are divided and classified, and defines the terms employed. By noting well its remarks and by a constant reference to the cuts and cross sections, the contents of the chapter are the more readily understood and become of much greater value. General Description Files and Rasps have three distinguishing features: 1st. THEIR Length.—Which is always meas- ured exclusive of their tang. 2d. Their Kind or Name. Which has reference to the shape or style. 3d. THEIR Cut. Which has reference not only to the character, but also to the relative degrees of coarseness of the teeth. Length The length of a file is the distance between its heel (or part of the file where the tang begins) and the point (or end opposite). The tang (or portion of the file prepared, for the reception of the handle) is never included in the length. In general, the length of files bears no fixed proportion to either their width or thickness, even though they be of the same kind. NICHOLSON FILE CO. 30