The Crescent® Nicholson® 4 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.

Nicholson® Mill File, Rectangle, 6 in Length, Single/Smooth Cut Type, American Pattern Coarseness of Cut, 19/32 in Width, 7/64 in Thickness, Tang