In the event that your CNC Machine goes rogue and seems hell-bent on self-destruction, consider this lifesaver: an all-metal emergency stop button. It's equipped with three leads, compatible with both NC (Normally Closed) and NO (Normally Open) configurations. To halt the chaos, just give it a push; a twist will set things back in motion.

If your CNC Machine starts to run wild, or decides to destroy itself, this button could save your machine, and your nerves! This button is capable of NC (Normally Closed - red side) and NO (Normally Open - green side) operation (notice the red and green on the bottom of the button). Push the button in to engage, and twist to release.

If your CNC Machine starts to run wild, or decides to destroy itself, this button could save your machine, and your nerves! This button is capable of NC (Normally Closed - red side) and NO (Normally Open - green side) operation (notice the red and green on the bottom of the button). Push the button in to engage, and twist to release.