Machinists File, Material Applications Aluminum, Brass, Bronze, Steel, Tin, File Coarseness Second , File Style American Pattern File, File Type Machinists File, Profile Shape Square, Face Style Double-, Edge Style Safe, File Length without Tang 6 in, Thickness 1/4 in, File Width 1/4 in, Number of Edges 4, Rigidity Rigid, Taper Taper Towards Point, Teeth per Inch 43, 48, File Body Finish Natural, Container Type Box, Features Wavy Tooth, Handle Length 6 in, Insulated No