Using the GRS Microball
I have been using this GRS Micro Ball for a few years now and I have to say that I love it. I find it very useful for so many things, not only is it good for work holding such as rings etc. You can use it to adjust settings because of the way the jaws close in a perfect parallel way. Such as an oval setting is easy to make by squeezing a round setting in a ball vice. Being able to control anything in your hand in 360 degrees as well as rotating it on it's axis is a joy to use.
Highly recommended.