4 inch flat bastard-cut file, 102 mm. Coarse-tooth file used for fast stock removal on smaller workpieces by fabrication shops and industrial maintenance crews.
4 inch knife-pattern bastard file at 102 mm. Tapered knife edge reaches narrow slots and tight angles in fabrication, machine shop, and industrial maintenance work.
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.