The black decker ka199 paddle switch random orbital sander is ideal for sanding polishing on wood metal pvc and paint on both flat and curved surfaces its paddle switch actuation allows for intuitive and simple operation with a high quality finish the motion of the sander allows you to safely sand across the grain of the wood without leaving swirl marks the powerful motor coupled with a fast sanding speed gets the job done quicker for effortless material removal with multiple gripping areas pa