Well I have a pretty old Hitachi 10" miter saw that I bought online probably 12 or more years ago as a refurbished unit.. Guess I got my $50 worth, LOL  The switch went out on it.. and I took it all apart and found the contact points about fried as they get, LOL  Looked for a new switch and turns out it's NLA... Yeah I'm smart enough to get around all that if I needed to by wiring up an old toggle switch or something.. Which I may do just to keep around as a back-up or something.. I use the saw