OK, I'm translating from german here so I'm not sure if it's the right terminology used but seems the Vic steel is hardened at 1040°C and then quenched at 160°C so the blades get a RC hardness of RC 56. (RC = Rockwell C, unit for hardness)
The saws, scissors and nail files are hardened to RC 53, screwdrivers, can openers and awls to RC
52 and the corkscrews and backsprings to RC 49.
The metal saw is work hardened and hard chromed? to achieve a hardness that can cut iron and steel.
No specific info for the Swisstol/Spirit but I guess these apply to it as well.