A dual-action sander is used to

A dual-action sander is used to

• A. Grind welds
• B. Shape metal
• C. Remove paint
• D. Polish metal

Answer: (C)

A dual-action sander, or random orbital sander, combines orbital and rotating motion to remove coatings while minimizing new gouges or swirl marks. In auto body prep, its primary use is stripping old paint and primer from metal or filler so you can see clean surface and create a uniform texture for adhesion. The random sanding pattern protects curved panels from pronounced scratches and makes surface prep safer and more efficient than tougher grinding tools. While you can use it with finer grits to feather edges or smooth a surface, the main purpose highlighted here is removing paint rather than shaping metal or polishing. For welding, grinding, or heavy metal shaping, different tools are preferred, and for polishing, a buffing setup with polish is used after paint is removed.

A dual-action sander, or random orbital sander, combines orbital and rotating motion to remove coatings while minimizing new gouges or swirl marks. In auto body prep, its primary use is stripping old paint and primer from metal or filler so you can see clean surface and create a uniform texture for adhesion. The random sanding pattern protects curved panels from pronounced scratches and makes surface prep safer and more efficient than tougher grinding tools. While you can use it with finer grits to feather edges or smooth a surface, the main purpose highlighted here is removing paint rather than shaping metal or polishing. For welding, grinding, or heavy metal shaping, different tools are preferred, and for polishing, a buffing setup with polish is used after paint is removed.