Why is it important to use a 3-pronged outlet for power tools?

Using a 3-pronged outlet for power tools is crucial primarily for ensuring proper grounding. The third prong in the outlet serves as a ground connection, which helps to prevent electrical shock or short circuits. When power tools are equipped with a grounding prong, it creates a safe pathway for electrical current in the event of a fault, directing it safely into the ground rather than through a person using the tool. This grounding feature significantly increases safety, especially in environments where tools may be exposed to water or damp conditions, or where the risk of contact with conductive materials is higher.

While other features such as accommodation for larger tools or enabling multiple tool connections are relevant in different contexts, they don't directly address the critical safety function provided by grounding, which is the primary focus when discussing the importance of a 3-pronged outlet in relation to power tools.