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In article jKJWi.16$b%1.4@trnddc01, "Mike" wrote:
I need an inspection mirror that can be attached to a magnetic base.
The mirror helps to see the indicating dial when the spindle is turned away.
I used a 3” wire frame mirror in the past but the stores no longer stock
them.

You can get a 2 1/4" telescoping inspection mirror from West Coast Tool
for ~ $5. If all you want is the mirror, they sell replacements:

http://www.westcoasttool.net (search for ULC2)

Doug White