Should double insulated tools be grounded?

Double insulated tools are designed with an additional layer of insulation to protect users from electrical shock. The primary purpose of double insulation is to eliminate the need for grounding because they are constructed to be safer without connecting to a ground. This means that they have two layers of insulation between the user and the electrical components, making it extremely unlikely for any electrical current to reach the user in the event of a failure.

Since grounding is a safety measure used primarily for single insulated tools to provide an additional path for electrical current in case of a short circuit, it is not necessary for double insulated tools. The design of double insulated tools already provides an effective safeguard, meaning that grounding is not a requirement and is not typically needed for their safe operation. This distinct characteristic is what makes the statement about grounding them not being required accurate.