What is an insulated tool?

An insulated tool is specifically designed with insulation to protect the user from electric shock and other electrical hazards. This insulation acts as a barrier between the tool's conductive parts and the user, ensuring that even when the tool is used in proximity to live electrical parts, the user remains safe. Insulated tools are typically used by electricians and others who work in environments where they may encounter electricity.

The other options do not capture the primary purpose of insulated tools. Tools made from metal only do not provide any electrical safety features. A tool that functions in wet conditions does not necessarily imply insulation or safety from electrical hazards, as wet conditions can actually increase the risk of electrical shock. Non-conductive tools for general use, while they may not conduct electricity, are not specifically designed with insulation for protection against electrical hazards, which makes them different from insulated tools.