Broader plug in Steelworxx Looker

Hi,

Could anyone confirm if they have a Looker (model 01 or 02) that features the broader, 8mm plug along with its 10mm bulb? If yes, what is the diameter of the hole drilled through it?

I was under the impression that this wider plug would come with a correspondingly larger hole to allow for greater capacity. However, the one I just received appears to have the same narrow drilling as a standard 6mm plug; if anything, its capacity seems even lower! I’m rather taken aback and am trying to figure out whether my expectations were misplaced or if this is an item worth returning so they can fix it.