Nicholson 6 in. L X 2.5 in. W High Carbon Steel Bastard Cut Mill File 1 pc

The Crescent 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.