Extra slim taper saw file at 6 inches. Narrow triangular profile for fine-toothed saws used by carpenters, sawyers, and shop techs sharpening hand saws.
10 inch flat bastard file at 254 mm. Larger coarse-cut file for heavier stock removal in fabrication and industrial maintenance work on steel components.
10 inch flat smooth file at 254 mm. Fine-cut file used after bastard or 2nd cut for finish work on larger steel parts in fabrication and industrial maintenance.