What is the primary purpose of double-insulated tools?

The primary purpose of double-insulated tools is to prevent electrical shock. Double insulation is a safety feature designed to protect users from electrical hazards. Tools with double insulation are built with a second layer of insulation separating the live parts of the tool from the outer casing, ensuring that if there is a fault in the tool, the electrical current cannot reach the user. This design significantly reduces the risk of electrical shocks, making these tools safer for use in various environments, especially those where moisture presence is a concern.

While efficiency, wear and tear reduction, and improved grip are relevant factors in tool design, they do not address the critical safety aspect that double insulation provides. The emphasis of double-insulated tools is on user safety, making them particularly important in residential and professional carpentry applications where exposure to electrical hazards is a concern.