https://www.openlearning.com/u..../thomasmyers-snhb41/
https://postheaven.net/kidneys....tool40/10-healthy-po
Electric Power Tools - Choosing Between Corded and Cordless Electric power tools let users reduce physical strain and complete work in less time that it would take using hand-held tools. They run on a consistent power source which means there's no risk of "power fade." The batteries can be recharged or an extension cord can be connected to an outlet. Corded vs. Cordless The choice between corded and co