Model no. 311 first appeared in the 1932 Victorinox catalogue. It was structurally very similar to the No.310 model, except that the can opener was swapped for a slim screwdriver. This was reflected in the entire change of this product line from the originally named "cadet's knife" or "small soldier's knife" to "mechanic's knife". As a fitter, you probably need a narrow screwdriver rather than a can opener.
Victorinox until around the mid-1960s and was then removed from the range.
Model No.311 had a large cutting blade, a screwdriver with a stripping function, an awl, a narrow screwdriver and an additional saw. The model was also available with or without a towing bracket.
Big cutting blade: 2.4 – 2.6 mm; Awl: 1.5 – 1.7 mm; Screwdriver: 2.0 – 2.4mm; narrow screwdriver: 2.0 – 2.2 mm; Saw: 2.0mm
Model no. 311 is a 3-layer pocket knife. The top layer contains the wide and the narrow screwdriver, the bottom layer the large cutting blade and the awl. The middle layer consists of the saw. The head rivet made of nickel silver, together with the 2 jaws, fixes the wide screwdriver as well as the large cutting blade and the saw; the foot rivet the narrow screwdriver as well as the awl and a spacer. The center rivet is used to fix the two scale parts and the back springs.
Only red fiber was used as the scale material.
When carbon steel was used, the sinkers and rivets were steel; in the case of tools made of stainless steel, the liners and rivets are made of brass, with the head rivet and the jaws always being made of nickel silver and the intermediate layer made of brass.
Trade names: cadet knife, mechanic's knife