Machinists File, Material Applications Aluminum, Brass, Bronze, Steel, Tin, File Coarseness Bastard , File Style American Pattern File, File Type Machinists File, Profile Shape Round, Face Style Double-, Edge Style Double, File Length without Tang 6 in, Thickness 7/32 in, File Diameter 1/4 in, File Width 1/4 in, Number of Edges 4, Rigidity Rigid, Taper Taper Towards Point, Teeth per Inch 27, File Body Finish Black Oxide, Container Type Box