Mill File, Material Applications Aluminum, Brass, Bronze, Steel, Tin, File Coarseness Bastard , File Style American Pattern File, File Type Mill File, Profile Shape Rectangular, Face Style Single-, Edge Style Single, File Length without Tang 14 in, Thickness 5/16 in, File Width 1 5/16 in, Number of Edges 4, Rigidity Rigid, Taper Taper Towards Point, Teeth per Inch 31, File Body Finish Black Oxide, Container Type Box