Screwhead with Tang Swiss Pattern Precision Files Swiss pattern files are designed for detail work, delicate finishing, and precise metal removal. They have strict manufacturing tolerances, are uniform in taper, points, sharp edges, dimensions and flatness. These files are made of the finest heat-tempered, chrome alloy steel.
A narrow diamond shaped section with short bevels to form sharp edges. Used for filing slots in small screws. Single cut on both edges - Both sides are safe. Length is 3" (75mm). Width is 23/64" (9.0mm). Available in 3 thicknesses.