Boring Stuff………………..

Finishing up some small details. One of those details is installing the electronic switch for the Spal radiator fan.


The switch will be installed into the thermostat housing. A drill chuck is installed in the Bridgeport and out comes the “Last Word” indicator to find dead center of the spot to be bored. A 3/8″ hole is drilled first to allow the use of a boring bar…………tap size is .830-14 so it’s nice to have the infinite adjustment of a boring bar.


Boring bar doing it’s thing.


Perfect…..ready to be tapped.



Tapped and switch installed.

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