Not yet, but I will do tomorrow.
The Elu cutter shaft is 6.334 mm dia. where as the original Aldi supplied cutter is 6.340 mm.
(Each cutter shaft measured in for places and averaged)
the Aldi cutter, being slightly larger, should be a better fit in the collet.
So it appears they are both supposed to be 1/4" (6.35 mm).
Note, using a better mic' to get these later measurements.
Dave.