"Toolmaker" wrote:

"Rusty"
It worrying that some circular saws can lock the switch on, so if you have
to drop it because of a graceful fall off the ladder, it doesn't stop the
motor itself.
For some time, circular saws have been required to have switches that do not
*lock on*.

In fact on more modern ones its more effective than that in preventing
accidental turn on. They still have what looks like a lock button on
the side but you need to press this to get the main switch to depress
- that's the way my Makita works and its a damn sight safer than the
way my old one could be accidentally powered or locked on.

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