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Richard,
Your answer makes very good sense. I can see how it could work good for that.


Doug,
You make an interesting point, but the two sides open and close at the same rate.


I just...

I've had this thing in my toolbox for years (can't even remember where I got it). I guess it is some kind of a caliper. I am using it try my hand at electrolysis. You might notice that part of it is...