EBay The Nicholson single-cut bastard mill files sharpen mill or circular saws and are ideal for draw filing and finishing metals. The rectangular shape lets you smooth and sharpen straight surfaces. 2 Square edges allow you to make grooves fixed at the same width as the file, and all sizes taper slightly in width to improve access in slots._X000d_ _x005f_x000d_ Bastard cut, American pattern mill file _x005f_x000d_ Sharpens mill or circular saws _x005f_x000d_ Great for draw filing and finishing metals _x005f_x000d_ Rectangular shape lets you smooth and sharpen straight surfaces _x005f_x000d_ Single-cut texture on the sides and edges for applying a smooth finish _x005f_x000d_ 2 square edges allow you to make grooves fixed at the same width as the file _x005f_x000d_ All sizes taper slightly in width to improve access in slots _x005f_x000d_ Product Description Nicholson Mill Bastard File, Single-Cut, Rectangular, 6 In. - 21825NN ® Nicholson 6" Single-Cut Bastard Mill File is ideal for sharpening mill or circular saws and for draw filing and finishing metals. The rectangular shape lets you smooth and sharpen straight surfaces. 2 Square edges allow you to make grooves fixed at the same width as the file, and all sizes taper slightly in width to improve access in slots. 6 In. Long Single-cut bastard mill file Ideal for sharpening mill or circular saws and for draw filing and finishing metals Rectangular shape lets you smooth and sharpen straight surfaces 2 square edges allow you to make grooves fixed at the same width as the file All sizes taper slightly in width to improve access in slots