Which of the following statements about the belt sander is correct?

The belt sander is a versatile tool that is capable of performing various sanding tasks, including rounding edges and deburring. This capability comes from the belt sander's design, which utilizes a continuous loop of sandpaper that can be adjusted for different sanding grades. The belt sander is effective for shaping and smoothing edges due to its high speed and aggressive sanding action, making it suitable for preparing surfaces before finishing or for any work that requires the removal of material.

In contrast, the other statements do not accurately encapsulate the broader functionality of the belt sander. While it can be used for rough sanding, it is not limited to this purpose, and suggesting that it is only for rough sanding restricts its diverse applications. Although some belt sanders can have attachments suitable for grinding metal, that is not their primary function. Finally, while a belt sander can contribute to finishing processes, it is not used exclusively for this purpose, as it is mainly employed in the initial stages of sanding, shaping, and smoothing surfaces.