Which action improves safety when using power tools?

Ensuring safety mechanisms are in place is crucial for improving safety when using power tools. Safety mechanisms, such as guards, emergency shut-off switches, and safety locks, are designed to protect the user from potential hazards. These features help prevent accidental injuries by controlling tool operation and reducing the risk of contact with moving parts. By confirming that these safety features are functional and properly utilized, users can significantly minimize the risk of accidents or injuries while operating power tools.

In contrast, using power tools without supervision can lead to improper usage or oversight of safety procedures, which may increase the likelihood of accidents. Keeping the area cluttered makes it harder to move around safely and can create trip hazards, while adjusting settings on a tool while it is running could lead to serious injuries, as it does not allow for proper control or awareness of the tool's operation.