In a message dated 5/13/02 9:27:28 AM, jmorris1@CAROLINA.RR.COM writes:

<< I'm assuming an EZ-out is the logical choice,

no? >>

John,

Not for me.  From your description, it seems that you have some remnants of
the studs standing proud of the case.  There are sockets made for removing
broken studs.  One type has internal teeth which, when the socket is driven
on, bite into the stud.  These sockets are dimensioned for a particular size
stud.  Another type of stud removal socket covers a continuous range of stud
sizes by way of an eccentric, toothed pawl which grips the stud.

To your advantage, the tension has already been relieved from the fastener,
although not in way you wanted it to be.  In an ideal world, you should be
able to wring out the studs by hand.  But, they are frozen.  You need to add
a lot of penetrant and a little heat.

If you cannot readily find the right stud removal socket, you could
alternately file diametrically opposed (and parallel !!) flats on the studs
and use a wrench to turn the studs.  Of course, do not even attempt this
until the penetrant and heat have performed their magic.

Oh, one more way to your end.  If you can file a decent square on the end of
the stud, you might want to try a hand driven impact driver.

Rich