I'm not sure who manufactures these hand wheels. I'm on my third one
and this one has an enormous amount of run out as did the others. I thought
maybe the internal treads may have been threaded crooked so I chucked them
up on a metal lathe I have at work and they've all had run out.

I'm probably going to use this just as a hand wheel, but if I ever decide to
add a vacuum chuck, this isn't going to work very well.

So, should I try for number 4, or just live with it? Who knows how many i'll
go through before I get one that's true.