Machinists File, Material Applications Aluminum, Brass, Bronze, Steel, Tin, File Coarseness Bastard , File Style American Pattern File, File Type Machinists File, Profile Shape Triangular, Face Style Single-, Edge Style Single, File Length without Tang 6 in, Thickness 1/2 in, File Diameter 1/2 in, File Width 1/2 in, Number of Edges 3, Rigidity Rigid, Taper Taper Towards Point, Teeth per Inch 42, File Body Finish Black Oxide, Container Type Box