Here is the bottom of an Oberburg ball mount machinist vise. It has 4.5" jaws, can rotate 360 degrees and the base has detentes every 10 degrees. The vise can pitch 30 degrees. One large handle on the bottom can lock the vise into the chosen position for milling. It weighs about 60 lbs.
When I got it the entire vise was welded together with very old dried grease and oil. That made this a pain in the *** to disassemble, never mind that I had no idea how it came apart!
This is the most sophisticated vise I've ever restored. The tolerances are incredibly tight. To assemble it I used a medium acrylic hammer and some super slippery light oil. I usually dry fit my vises prior to full assemble but it wasn't happening on this one. One cool thing is that when I assembled the rotating base I had coated it with the oil, once assembled you can hear the oil gurgling as the pieces move against each other. The base is as smooth as it it were hydraulic.
If you look closely you will see the very top of the ball, where the machinist vise mounts, has been hand scraped.
I put these pics up because you cannot see the inner-workings when the vise is assembled and also because the vise section is still in my Simple Green tank having the paint stripped.
I will post pics when it is 100% complete
I've only ever seen vague pics of those Oberburg vises. I still wonder how that large ball pivots in the base.


Many times I felt like a red headed step-child waiting for a reply. Thank You very much Rusty.
Different places, I know!