Which tool is used for sanding surfaces?

The correct answer is the sander, or more specifically, the orbital sander, which is designed specifically for sanding surfaces to create a smooth finish. Sanders utilize various types of sandpaper or sanding pads that rotate or oscillate in specific patterns to effectively remove material from the surface being worked on. This makes them ideal for preparing surfaces for painting, staining, or sealing.

Using an orbital sander allows for greater control and a more even finish compared to other tools, which are not intended for this function. For instance, a welder is used for joining metal pieces together through the application of heat, while a drill is primarily utilized for creating holes or driving screws. A circular saw is designed for cutting through various materials like wood, and while it can create rough edges that may require sanding afterward, it does not function as a sanding tool itself. Thus, the sander is the specialized tool that fulfills the need for sanding surfaces effectively.