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 knife bastard file at 254 mm. Tapered knife edge for stock removal in narrow slots and acute-angle joints in fabrication and industrial maintenance work.
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.