Hello all,

I removed the fixed jaw, cleaned it (there was a fair amount of gunk but
not much in the way of debris), and slid it under a plunge indicator.
There might be an argument for 0.0001 in variation, but not much more
than that.

After careful cleaning and replacement of both jaws, I indicated the
vise on a clamped parallel as I have been doing, and had a much easier
time than before. The end result is essentially what I saw on the "part
that ate the tap", only w/o the bounce from the finish.

Just as with the bolts on my mill's column, the jaws must have been
attached by King Rong I finally ended up standing on the Allen
wrench to loosen the bolts; with my hands, I was afraid it would break
loose and a finger would follow - they were that tight. I put them back
with a fairly good tug on the same wrench, but not nearly as tight as
delivered.

Bill

"Bill Schwab" wrote in message
news
Hello all,

I removed the fixed jaw, cleaned it (there was a fair amount of gunk but
not much in the way of debris), and slid it under a plunge indicator.
There might be an argument for 0.0001 in variation, but not much more than
that.

Kudos. I just checked the jaws on my new Enco 4". They were shaped like a
rope suspension bridge on both the front and back. Cheap is cheap. Good
news is the face within an inch of either end are coplanar at least, just
have to remember that when fixturing small stuff. Hole pattern isn't
centered on either jaw nor in the same place between jaws. yuk.


After careful cleaning and replacement of both jaws, I indicated the vise
on a clamped parallel as I have been doing, and had a much easier time
than before. The end result is essentially what I saw on the "part that
ate the tap", only w/o the bounce from the finish.

Just as with the bolts on my mill's column, the jaws must have been
attached by King Rong

I'm going to hang on to that one. King Rong. Chuckle. =)

I finally ended up standing on the Allen wrench to loosen the bolts; with
my hands, I was afraid it would break loose and a finger would follow -
they were that tight. I put them back with a fairly good tug on the same
wrench, but not nearly as tight as delivered.

Bill

"Bill Schwab" wrote in message
news
Hello all,

I removed the fixed jaw, cleaned it (there was a fair amount of gunk but
not much in the way of debris), and slid it under a plunge indicator.
There might be an argument for 0.0001 in variation, but not much more
than that.

After careful cleaning and replacement of both jaws, I indicated the
vise on a clamped parallel as I have been doing, and had a much easier
time than before. The end result is essentially what I saw on the "part
that ate the tap", only w/o the bounce from the finish.

Just as with the bolts on my mill's column, the jaws must have been
attached by King Rong I finally ended up standing on the Allen
wrench to loosen the bolts; with my hands, I was afraid it would break
loose and a finger would follow - they were that tight. I put them back
with a fairly good tug on the same wrench, but not nearly as tight as
delivered.

Bill

I called Kurt about a 6" mill vise about 20 years ago, and they told me to
torque down the bolts to 150 lbs. for the fixed jaw. (1/2" bolt)