Not sure what that last one is. I've found ~2 that are very similar. I assume they're finished tools, but I don't know what they'd be used for.
Those first ones are made from some nice stone. What type is it?
i have two guesses
most likely a bit for a bow drill
but could possibly a spoke shave
my 1rst thought is drill a drill
that is nice material and quite a variety
it seems the dakotas and montana have a good supply of colorful material that is nice to work and flake to sharp edges
old digger said:Thanks Steve; I just wasn't sure. I was thinking a drill that was hafted to a stick and used for drilling into wood or bone.
Three are obsidian and the other is a white chert. Thanks for viewing!
old digger said:Thumbscrapers!