"Doug White" wrote in message
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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.


Hard disk drives for PC have platters about 3.5" dia with a1.25" hole.
The metallic surface is one of the brightest mirror around.
Made of metal, can be cut and drilled.
Lots of junk drives around.

Mauro