"John Ammeter"

The drill press we had at work had a safety interlock that really worked.
You had to put the chuck key arm in a switch before the drill press could
be turned on. The chuck key arm would activate a momentary contact switch
in the circuit for the drill press... no chuck key in the switch, no drill
press operation...

Sounds like a nice setup.

Do you also have to have a guard around the drilling area?

I see those in catalogs, but can not imagine how you could use one, and
still work in control, and be safe.
--
Jim in NC