Frank, I'm guessing that's a paperweight for the dollar bills you are making
LOL!!
I know it is actually a neat tool made to remove an oil pressure sending unit that is screwed into the back of a block 
Hoop, I give up
What is your tool creation used for
Ah ha, now I know what it is based on the latest pictures you have added. That's slick!
Here are a few more pictures of tools I have made that could not be posted above.....