Machinists File, Material Applications Iron, Mild Steel, Plastics, Wood, File Coarseness Smooth , File Style American Pattern File, File Type Machinists File, Profile Shape Half Round, Face Style Double-, Edge Style Single, File Length without Tang 12 in, Thickness 13/64 in, File Width 1 1/8 in, Number of Edges 2, Rigidity Rigid, Taper Regular Taper, File Body Finish Natural, Container Type Box, Features Perfect for Use on Concave, Convex, and Flat Surfaces, File Material Steel