All holders are available in BT MAS 403, DIN 69871 AD/B, DIN 2080 & NT 30 series
Cone's tolerance is according to the class AT 3.
Collet chucks run out accuracy are according to the norms DIN 6391 which permit a run out error between external cone & internal cone / collar seat of 0,016.
Shell end mill adaptors meet the requirements of the norms DIN 6358, which prescribes for O 16,22,27,32 a run out accuracy of 0,01 for SK 30 / 40, 0,015 for SK 50.
End mill holders ensure the prescribed holes tolerance & have a run out accuracy which is largely below the requested one (normally 0.005)