Tool ID - bit of some sort

[Kudzu]

Found several of these cleaning out my FIL's shop.  No idea what they are.  Bosch 752 on the shank.





Some one knows what they are.

[Firebee]

Looks like a combo plunge cut and flush trim bit offered in many router bit sets

[Kudzu]

Had not thought about it being used in a router. That makes sense....Now.

[Kudzu]

Looking at them NOW, I see it and how it works. I had just given them a quick glance and it looked like the center was smaller dia. than the tip and that is what was confusing me. Interesting design.

[Jack in omaha]

I have good luck using google to find the item if you have maker and a clear model number. Also if no name is found use google image search.