Sandpaper attaches to a rectangular pad on the bottom of the sander. The motor moves the pad in small, circular orbits.
Easy to handle.
Can use regular sandpaper, and measures its size by the portion of a standard 9”x11” sheet of sandpaper it uses. A 1/4 size uses a 1/4 of a regular sheet, a 1/3 uses a 1/3 sheet and a 1/2 uses a 1/2 sheet.
The holes on the bottom of the sander help to remove the dust from the material as you are sanding.
Some models have a sandpaper piercing plate that allows you to transform a standard sheet of sandpaper into one with holes designed to fit on the bottom of the sander.
Good for sanding corners and finish work. However, it may leave some scratches as is sands both with and against the grain.
Some models incorporate a triangular pad extension for sanding in tight corners.
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Also known as a finish sander.