Slvr, How about an Angostura for that drill ?
In another post on Dusty's finds you were complementing on the Mano. It's nicely shaped but are we sure it's really a mano ? Not much " hand of man " crafting evident.
Righto on the rock, a nicely proportioned flint nodule.
On that nicely proportioned base tang : maybe it's just a base tang !
Overstreets shows one small example that with a bit of a stretch has similarities to your find .
If you have that 10th ed. book, I'm refering to page 529, G7 from Comanche county.