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.
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.
8 inch flat smooth file at 203 mm. Fine-cut pattern for finishing passes and light deburring in fabrication, machine shop, and industrial maintenance work.