This European Standard specifies the determination of the maximum speed for given eccentricity at clamping devices for the shank strength of milling tools with cylindrical and taper shank. It also specifies the marking of the tool. Bore mounted tools which are mounted on an arbor should be considered as a shank mounted tool. This European Standard complements EN 847 1 and applies also for shank tools with a cutting diameter of less than 16 mm.