by bdring » Fri Apr 09, 2010 12:54 am
We use those all the time at work. We call them Jiffy-Jacks. That is a good price, I think we pay well over $100 each.
They are super handy for quick test setups. They do have a lot of drag on the knob when they have any weight on them. You need to lift the weight when you turn them.
Bart
"If you didn't build it, you will never own it."