I put the washers in the Kurt D-675.

[seal killer]

Glenn--

Yes. O-rings. My bad. Thanks.

--Bill

[SteveHGraham]

For those that lack that feature, unless I'm mistaken, you have machine tools? If so, and your similar vise lacks the feature desired but is otherwise satisfactory, why not just add the feature? At most, it seems all that would be needed is a picture of the feature, perhaps a dimension or two, and the size of the o-ring...

I thought the O-rings went into hardened steel which is too tough to machine. Is that wrong?

[BadDog]

I believe those pockets are in the cast steel section, not the jaws. I'm expect HSS would do the job just fine. I know you can drill and tap it, so why not machine a pocket. And even if it was hardened steel, carbide will cut it.

[Richard_W]

From the picture the O-rings look small? What size are they and exactly where? A picture showing it going under the jaw doesn't show much.

I have a 6" and an 8" Kurt vise, maybe an upgrade would be nice.

Richard W.

[GlennW]

They are about 3/8" dia and fit into counterbores in the movable jaw block, not the jaw itself.

scroll down to page 7

http://www.kurtworkholding.com/download ... e_D688.pdf

[Richard_W]

Thanks Glynn.

[SteveHGraham]

I think I'll wait for someone who knows what they're doing to do a retrofit and post photos.

[Conrad_R_Hoffman]

Where I work we just took the darn things out! They were a "feature" we didn't know was in there, and they cause problems with precision work if you're not clamping very tight, or if the clamp adjustment set screw is a bit off. It drove us crazy for years, not understanding why the jaw didn't sit solid, so be sure the "feature" is suitable for the type of work you do.