OT: Can anyone identify this tool?

[Electronics Plus]

https://plus.google.com/photos/106111250846948401252/albums/6114301294379699
009?banner=pwa

 

I picked it up, new, at the recycler, thinking it was a drill bit, but it is
not. It is 13 cm long, and has a light or lens of some sort at the small
end. The large end is about 3/4". It appears to be made of stainless steel.
Engraved on it is QD90-6722. I added another pic, showing the larger end.
There is a lens of some sort inside, and light shines through to the lens at
the smaller end.

 

Cindy Croxton