SkillsUSA Carpentry Practice Test

Smoothing a variety of shapes works best with a tool whose sanding action can follow contours without digging in. An orbital sander uses a round pad that both spins and moves in a small orbit, producing a light, random pattern that can glide over curves and irregular profiles. This combination makes it capable of finishing surfaces with different shapes smoothly, without leaving noticeable swirl marks or gouges. While drum and disk sanders are great for flat or cylindrical surfaces and belt sanders for rapid material removal on straight edges, they’re less adaptable to complex contours. That versatility is why the orbital sander is the go-to choice for smoothing most shaped pieces of work.