Precision File, Material Applications Aluminum, Brass, Bronze, Steel, Tin, File Coarseness Smooth , File Style Swiss Pattern File, File Type Precision File, Profile Shape Triangular, Face Style Double-, Edge Style Single, File Length without Tang 6 in, Thickness 3/8 in, File Width 3/8 in, Number of Edges 3, Rigidity Rigid, Taper Taper Towards Point, File Body Finish Natural, Container Type Box, Features The Triangular Shape is Excellent for Use in Corners and on Dies