This 5" hand file features an extra slim, tapered design. Perfect for the most delicate gunsmithing applications. Triangular shape, American pattern. Notes: File length is measured exclusive of tang, from point to heelAmerican pattern files are available in 3 grades of cut: bastard-cut, second-cut and smooth-cutSwiss pattern files are offered in seven cuts: No. 00, 0, 1, 2, 3, 4 and 6 with #00 being the coarse, #6 the fine cut