Double-insulated tools are designed with nonconductive materials and additional insulation to protect users from electrical shock. They provide extra safety in situations where grounding is not practical. These tools reduce the risk of electric shock during use. ;
The tools referred to in the question are called double-insulated tools, which use nonconductive materials and have multiple layers of insulation for safety. They are designed to protect users from electrical shock, particularly in scenarios where grounding isn't feasible. Examples include electric drills with plastic casings and internal insulation.
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