It looks to me like a screw in the bottom/middle, indicated it is fitted to something we can't currently see.
That is correct.
Well, it's obviously part of something else with that plus shaped opening at the bottom. We have extra parts for our immersion blender that have openings like that, like a whisk attachment, mini blender and chopper.
No - its not part of something else. It does its particular (and singular) job without any attachments.
No - its not part of something else. It does its particular (and singular) job without any attachments.
It looks to me like a screw in the bottom/middle, indicated it is fitted to something we can't currently see.
That is correct.
Okay, you just contradicted yourself.
Does it tamp something?
Lol.
It looks like a medical device.