I think I've had every on/off switch on every power tool I own, go bad. Two miter saws, a table saw, and a skil router. Okay, so it was a cheap router, so I invested in an expensive Bosch router, #1617 EVSPK, a couple hundred dollars or more IIRC. This morning THAT switch went south and I don't use it that often. I'm sure the contacts get burned, but usually they can't be disassembled for clean up. I replaced the table saw switch with a 20 amp wall switch but rigging something on a hand tool is a little more iffy.

Looked up the part number on the web and noted a problem solution site by cause. The switch is the cause of no start problems 66 percent of the time! It's a six dollar part for gods sake! What are they thinking? The start switch on my Yamaha is giving owners problems too. Why can't we get quality switches? Rant off. Bob