Locking connectors are worth it for anything that moves.

Yes, for anything that might get yanked or bumped — they use a twist-lock or latching mechanism that physically prevents the plug from sliding out, so you don’t lose power at the worst moment.

Standard extension cords just rely on friction. A bump, a tug, a kid running by, and pop — you’re resetting a router mid-Friday or killing the miter saw mid-cut. Locking connectors solve that with a simple mechanical grip: you plug in, twist or press a latch, and it can’t come undone unless you release it.

Are they worth the extra few bucks? Depends on your use case. If you’re running a table saw on a jobsite or setting up string lights where people walk? Absolutely. If it’s a cord that sits behind a couch and never moves? Probably overkill. But the peace of mind is cheap — usually $10–20 more than a basic cord.

Your saw won’t care, but you will when it stops mid-cut.