I'd had a bunch for a long time now but have not used them...the obvious application was turning on the sustainer.
I was reminded of them from some recent posts that might have benefited from a 4pdt switch but might have been short on space and of course, 4pdt switches can get price-y as well as internally quite large.
They are similar to the kind of switches fender have used from time to time but push button switches never seem to be too practical.
Mounting them is possibly tricky and are small so likely better mounted to a bit of circuit board for soldering.
The action of the switch is of course latching...
Mr D.I.Y. Sustainer ;-) [/IMG]New Project...'jazz strat' ... Seagull project and mini PA amplification