Help in identifying what I think is some sort of drill or machining bit?

[tfaiers]

Hello Everyone,

Just reposting this, hope it doesn't double-post but the previous attempt didn't appear, apologies if duplicated.

I've got a machine bit which I'm trying to find out what it is, unfortunately the people I know locally don't know, so I thought I'd post the question further away.

There should be two photo's in this post, one from the front and one from the back of the bit, the only identifier is the mark 2,8 r (I think it's an 'r') and one end is flat bell shaped.

Any help with it's identification would be appreciated!

All the best
Tony