On Tue, 22 Apr 2008 22:43:12 -0500, with neither quill nor qualm,
Richard J Kinch quickly quoth:

I have an old Millers Falls micrometer that somehow is out of calibration
by about a half a thou. How do you adjust these? I've adjusted other
types where you grab the sleeve (Starrett) or the end of the thimble
(Polish import) with a little spanner wrench, but I can't find any such
mechanism on this Millers Falls item. It's been trustworthy for many
decades (from former owners and lately me), made in the USA, and
wonderfully dinged up and cosmetically worn, so I have an attachment to it.

What, you don't have a vise? silly grin

--
Happiness in marriage is entirely a matter of chance. If the dispositions
of the parties are ever so well known to each other or ever so similar
beforehand, it does not advance their felicity in the least. They always
continue to grow sufficiently unlike afterwards to have their share of
vexation; and it is better to know as little as possible of the defects of
the person with whom you are to pass your life.
-- Jane Austen, Pride and Prejudice, 1811