File (metalwork) Guide, Meaning , Facts, Information and Description
A File (or Hand-File) is a metalworking hand tool used to shape material by abrasion. A file typically takes the shape of a steel bar, most of which is covered with an array of crisscrossing steel ridges. One end of the bar, called the tang, is pointed and narrow and attaches to a round handle. Files should never be used without a handle, as the pointed tang can easily injure the operator.Files come in a wide variety of sizes, shapes, and tooth sizes. File cross-sections can be flat, triangular, round, or half-round to suit the workpiece shape. Files can be very large and course (such as a rasp) or small and fine (such as a nail file).
Files have forward-facing cutting teeth, which means that the file only effectively cuts when pushed over the workpiece. Pulling a file over a workpiece or rapidly scraping a file back-and-forth is ineffective and will reduce the life of a file.
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