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Electric Power Tools - Choosing Between Corded and Cordless Electric power tools reduce physical strain, and allow users to complete jobs in a fraction the time it would take using hand-held tools. They work with a constant power source so there's no chance of "power fade." The batteries can be recharged using an extension cord can be connected to an outlet. Corded vs. Cordless Choosing between corded and cordless power tools depends on your individual requirements and working environment. Both types have their own benefits however, each has its own limitations.