A rotary tool, a handheld power tool that provides precision and detailing, can be used for tasks such as cutting, carving, drilling, and the like. These tools can also be used to sharpen nearly any item with a cutting edge, from a knife to a lawnmower to a chainsaw. The article also lists how to use rotary tools to remove rust from surfaces, which can be time-consuming and potentially dangerous. It also provides a guide for safety measures, including eye protection and a dust mask for dust particles. The author also lists a list of every major rotarytool brand to help you make informed decisions about adding one to your toolbox.