DC3
Well-known member
Here's another tool from my Dad's garage. This one is marked "Proto 659 USA". Surprisingly, I could find nothing about it on the internet. I actually found two of them.
The end with the collar is hollow and looks like it is designed to be slipped over a rod or shaft and then the set screws are tightened to hold it in place.
Anybody know what it is?
DC
The end with the collar is hollow and looks like it is designed to be slipped over a rod or shaft and then the set screws are tightened to hold it in place.
Anybody know what it is?
DC

