What is defined as a sharp, ragged edge of metal?

A burr is defined as a sharp, ragged edge of metal that remains after cutting, grinding, or machining processes. These edges can be hazardous as they pose a risk of cuts, and they can also affect the quality of a finished part when the burr is not removed. Removing burrs is an important step in metalworking, and this can be achieved through various methods such as filing, sanding, or deburring tools. Understanding what a burr is and how to manage it is essential in ensuring safety and quality in metal fabrication.

The other terms do not describe sharp edges: a ratchet is a tool used to turn fasteners, a magnetic base drill refers to a type of drilling equipment with a magnetic base that holds it in place, and a pipe tap is a tool used to create internal threads in a pipe. Each of these items serves a specific function in metalworking but does not relate to the definition of a burr.