Mill File File Coarseness Bastard Cut File Style American Pattern File File Type Machinists File Profile Shape Rectangular Face Cut Style Single-Cut Edge Cut Style Single File Length without Tang 6 in Number of Cut Edges 4 Taper Tapered in Width and Thickness File Body Finish Natural Features Bastard Teeth Spacing for General-Purpose Tool Sharpening and Material Smoothing Handle Length 6 in Insulated No