Model no. 310 first appeared in the Victorinox catalog in 1922 with the fiber, horn and staghorn scale variants. Compared to the basic model No.304, the model No.310 has an additional saw. In the beginning, this was fixed to the foot rivet, from around 1930 to the head rivet. Otherwise, the model did not undergo any major changes. It was available until the 1960s, after which Victorinox ceased production of the model as well as the entire line.
Model No.310 had a large cutting blade, screwdriver, awl, can opener, and an extra 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; Can opener: 2.0 – 2.2 mm; Saw: 2.0mm
Model no. 310 is a 3-layer pocket knife. The top layer contains the screwdriver and the can opener, 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 screwdriver, the large cutting blade and the saw; the foot rivet the can opener as well as the awl and a spacer. The center rivet is used to fix the two scale parts and the back springs.
Fiber red in particular was used as the scale material. At times, the model was also available with scales in horn and staghorn.
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. At the very beginning there were also models with steel jaws/liners.
Trade names: cadet knife, mechanic's knife