[GreenKeys] Tools - whazzit for?

[Nick England]

I have accumulated a few tools and gauges and can sometimes ID them from
the tool bulletins.
http://www.navy-radio.com/tty/tools.htm

But often their actual usage is unclear -
Is anyone familiar with these?
http://www.navy-radio.com/tty/tools/tools-2502-01.jpg

Nick England K4NYW
www.navy-radio.com
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