Machinists File Material Applications Aluminum Brass Bronze Steel Tin File Coarseness Bastard Cut File Style American Pattern File File Type Machinists File Profile Shape Round Face Cut Style Double-Cut Edge Cut Style Double File Length without Tang 8 in Thickness 5/16 in File Diameter 5/16 in File Width 5/16 in Number of Cut Edges 4 Rigidity Rigid Taper Taper Towards Point Teeth per Inch 22 File Body Finish Black Oxide Container Type Box