PORTER-CABLE 382 5-Inch Random Orbit Sander Dual plane counter Provides longer switch life 100% ball bearing construction Provides maximum sanding speed for smooth finishes Dual plane counter 100% ball bearing construction Provides maximum sanding speed for smooth finishes Provides maximum sanding speed for smooth finishes Provides maximum sanding speed for smooth finishes Controlled finishing system maintains controllable pad speed and minimizes gouging during start up Dual-plane counter-balanced fan reduces user fatigue Dust-sealed switch protects against dust ingestion for longer switch life Sealed 100 percent ball-bearing construction