Which sander uses pneumatic air, is quieter, leaves a better finish, and must be used on the downdraft table?

• A. Palm Sander
• B. Dremmel Tool
• C. Mini Belt Sander
• D. Pneumatic Orbital Sander

Answer: (D)

This question is about recognizing an air-powered sanding tool that delivers a smooth finish and works well with a dust-collection setup like a downdraft table. A pneumatic orbital sander runs on compressed air rather than electricity, which generally makes it lighter, cooler, and quieter because there’s no electric motor in the handle and the exhaust is the main sound source. The orbital action (a small, free-moving pad) provides a consistent, fine finish with less gouging or visible swirl marks than a belt sander or a high-speed rotary tool. When you’re using a downdraft table, the lack of heavy vibration and the ability to connect dust extraction helps keep the surface clean and minimizes airborne dust, reinforcing why this type of sander pairs well with that setup. The other tools don’t fit as well: a palm sander is typically electric and can be louder with a rougher finish; a Dremel is a high-speed rotary tool designed for detail work; a mini belt sander removes material quickly but usually leaves a rougher finish.