"Ivory" Rod Tool Bit Holder - hand pencil nail cutter carving - ODD RARE vintage

Description

For sale is some sort of holder.
I tried to research what this could be to no real answer yet.
Tighten the end thumb nut and it pulls in the other end inside of the tool. Looks like it's to hold onto some varying sized rod or other type of object.
It is all metal, even the textured part.
It's pretty well made overall.
If you have any info about it, I'd love to know!!
Sold as shown.
Before purchasing:
Review pictures thoroughly for condition before purchasing. If you need more pictures to be comfortable with your purchase, I can happily oblige!
Review all shipping services offered to find the best option for your needs.
Message me with any questions/concerns/comments, I'd be happy to answer!
Thank you!