Files are specialist hand tools used for grinding, shaping, smoothing or polishing surfaces. While some car owners might never use a file on their vehicle, these automotive tools can be just as easily applied to domestic tasks. Just avoid using these in pursuit of the perfect French tip: they're considerably stronger than your average nail salon tools. In fact, these files are so strong that they make quick work of many metalworking jobs. Use them to smooth drilled holes when installing an oil sump plug, or to remove burrs before installing new head bolts. Grind out damaged material before performing a body patch job. Hand files are ideal whenever you need some finesse, or when a power tool won't fit in a tight spot.