Vice or vise?
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I’m thinking I’ve saved so much money not traveling this last year… Honey I bought this vice
You offer up the vice first, the vise is the fall back compromise.Vice or vise?
My vise is the Yost COV-3. Currently $27.10 at Amazon https://www.amazon.com/gp/product/B00XWCEI8SI found with the little vice the clamp jaws didn't clamp parallel, so even when I tightened the first stage handle it would come loose. I’m sure with a larger vise that wouldn’t be a problem, but I find the design of your vice the clamp faces come right together perfectly.
So interesting I bought this from Amazon.ca made in US.My vise is the Yost COV-3. Currently $27.10 at Amazon https://www.amazon.com/gp/product/B00XWCEI8S
It's made in China (although the Amazon listing says Taiwan which is the reason I chose this model). My jaws do close parallel. But there is slop in the guides, so if you are clamping something that's not very wide, you need to put it right in the middle of the jaws or they will twist a little bit.
I'm sure the tolerances and possibly the materials are much better.So interesting I bought this from Amazon.ca made in US.
https://www.amazon.ca/gp/product/B002PCMKGI/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
^^^ This.^^^ or IMHO a "regulator box" or "holding fixture" is easier to use, less time consuming, and very gentle on a regulator body. See attachment for a store bought version that can be easily copied.
This thread shows my workbench fixture:
Regulator holding fixture.
Yours looks the same, even the name. Except I paid 4 times as much. UghI'm sure the tolerances and possibly the materials are much better.
But you are still going to have to put screws/bolts through those two holes to keep it from twisting when you apply much torque.