TCP Global Brand 6" Dual Action D.A. Sander With Pad, Air Powered, (1/4"NPT) Professional Heavy Duty 6" Dual-Action Air Palm Sander with PSA Backing Pad Heavy Duty Ball Bearing Construction for Vibration Free Performance Professional Sander with Unique Ergonomic Design Low Vibration for Swirl-Free Finishes Built-in Regulator for Complete Speed Control