How do you remove a key off from a shaft?

To remove a key from a shaft, first ensure that the machinery is powered off and secured. Use a flathead screwdriver or a similar tool to gently pry the key out from its slot, taking care not to damage the shaft or keyway. If the key is stuck, you may need to apply penetrating oil and allow it to soak before attempting removal again. Always wear appropriate safety gear during the process.