Machinists File Material Applications Aluminum Brass Bronze Steel Tin File Coarseness Bastard Cut File Style American Pattern File File Type Machinists File Profile Shape Square Face Cut Style Double-Cut Edge Cut Style Safe File Length without Tang 8 in Thickness 5/16 in File Width 5/16 in Number of Cut Edges 4 Rigidity Rigid Taper Taper Towards Point Teeth per Inch 25 28 File Body Finish Natural Container Type Box Features Wavy Tooth Handle Length 8 in Insulated No