Chainsaw file Material Applications Steels up to 1 200 N/mm ( less than 38 HRC) File Coarseness Smooth Cut File Style American Pattern File File Type Chainsaw File Profile Shape Round Face Cut Style Double-Cut Edge Cut Style Safe File Length without Tang 8 in Thickness 7/32 in File Diameter 1/4 in File Width 1/4 in Number of Cut Edges 2 Rigidity Rigid Taper Blunt Teeth per Inch 10 File Body Finish Natural Container Type Box Abrasive Material Aluminum Oxide