Another Interesting use of a Pole Spear adapter.
[ 3/8"-24 Male x 5/16"-24 Female]
I made this page for illustrating a solution someone had.
Customer Dialog FYI , he bought the Rev B version and shortened it.
Rev A would have been the better choice, but I did not have it available.
Rev A is now available for others.
John, I have a unique use for this adapter.
I have an old WEN 7” sander/polisher that has a non-standard output drive configuration, and I am hoping the adapter will allow me to use the standard 5/16-24 threaded backing pad that is used today.
I don’t like scrapping an old tool, just because I cannot make things match up. I will let you know how it goes.
Here are some pictures to support the modifications. I took the front end taper back to within 3/32” of the largest diameter and have it a little chamfer with my countersink bit.
The sander/polisher is a WEN model #943, with a 3/8"-24 female output drive. The new buffing pad has a 5/16"-24 male thread. Your adapter makes the match.
After a slight shortening of your adapter, my old WEN (model #943) sander/polisher has new life, and can use modern abrasive products. See below.