Screws on the back of Kurt style vise?

For such a simple question I can't seem to find anything about it while Googling.

What are the screws on the back of the moveable jaw on a Kurt style vise used for?

My assumption would be to hold a plexiglass chip shield or something similar, or maybe another vise accessory I'm unfamiliar with.

If needed I can post a picture for reference.

Thanks!

If you click the specification tab here and then "alternate jaw positions" you will see that the jaws can be screwed to those holes for light gripping of large parts

The ones on the back of the fixed jaw can also be used to mount a stop such as this

Edited By JasonB on 31/03/2022 07:17:53

The only trouble that I found when using these positions was that the original jaw, when moved to position "B" in the alternate page to which Jason refers, is that there is very little meat for the jaw to grip with. I get around that by using some slightly longer screws and a couple of parallels as shown below:

This gives a much larger area above the fixed jaw, However, I would caution against use in this way except as a quick-and-dirty fix. I must admit, having said that, that I have used it to hold a rotary table in the vice for a one-off job that would have otherwise have needed a swap-out and subsequent re-tramming of the vice. It does, of course, assume that headroom is sufficient when used this way.

It has also allowed the fixture of plate material for machining while held in the the vice that would otherwise be too large to fit between the jaws in normal use.

A similar set-up on thee moveable jaw extends the scope of the vice accordingly.

John

They can also be used to mount a chip deflector.

That's a great idea John H. And thanks all, I never really thought about using it for another mount.