What characteristic distinguishes a single-cut file from others?

A single-cut file is distinguished by its arrangement of teeth, which are cut in a single line along the surface of the file. This design results in finer, more precise cutting compared to files that have multiple rows of teeth, often referred to as double-cut files. The finer teeth of a single-cut file allow it to produce a smoother finish on the material being worked on, making it ideal for tasks requiring attention to detail and a refined surface.

In contrast, options such as thickness, surface roughness, and usage for coarse cutting do not specifically pertain to the defining characteristic of a single-cut file. While thickness may vary among different types of files, it is not a definitive feature of single-cut files. Similarly, a rough surface is not a characteristic of single-cut files; they are typically designed for finishing work rather than roughing out material. Lastly, the assumption that a single-cut file is used for coarse cutting misrepresents its actual purpose, as it is more suited for fine finishing rather than removing large amounts of material quickly.