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Electric Power Tools - Choosing Between Corded and Cordless Electric power tools allow users to reduce physical strain and complete work in a fraction of the time that it would take using hand-held tools. They work with a constant power source so there's no risk of "power fade." They draw their energy from the electricity source -- either via the plug of an outlet or batteries that can be recharged. Corded vs. Cordless Choosing between corded and cordless power tools is based on your specific