"DoN. Nichols" on 25 Jan 2021 03:32:17 GMT
typed in rec.crafts.metalworking the following:

Most micrometers use the 357 and 44 sized cells (easy to
remember -- both numbers are magnum calibers) and they are available in
either alkaline or silver oxide variants. The battery life is much
better in the silver oxide (I prefer SR-357 cells) -- and I believe they
are also much less likely to leak and damage the micrometer.

Yes -- I also have pure analog micrometers too. Old eyes tell
me I need to wear glasses to use them.

I kept a pair of cheaters in my tool book to go over the bifocals
in order to read the mic ...


BTW I also have one Russian 0-25mm micrometer. It is beefier than
all the others which I have or have used. I think the shaft is
8mm (about 5/16" instead of the more common 1/4" shaft on the
others. I guess that I would not be too upset at seeing it used
as a C-clamp. :-)

Enjoy,
DoN.
--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."