• For jobs where a standard flat hand file, ref. 1-100, is too wide or too thick, e.g. for filing of narrow grooves • Easier access where a standard file is too large • Pillar file is a flat file of a slimmer design • For the manufacture of dies and punches, etc. • Shape: edges and surfaces parallel • Type of cut: 1 = bastard, 2 = second, 3 = smooth • Surfaces double cut, one edge uncut, other edge single cut • Industry pack unhandled