The name diamond file refers to the cutting medium not the shape. They are used in both benching and smoothing phases. Diamond files are 3 to 6 inches long with a cutting surface of 1 to 4 inches. They come in four basic shapes: flat, round, half round, and triangle. Diamond files are made by electroplating diamond particles to a file blank. They are excellent for use during an EDM process. Diamond files can also be used to install all radii. They can be used by hand removing cutter marks from thin ribs, especially when the ribs have been burned during an EDM process. Diamond files can also be used to install small radii. They can be used by hand but are most effective when driven by a profiler.
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