The Ingersoll Rand 311A Heavy Duty Dual Action Quiet Air Sander with 6-inch Pad uses a built-in silencer to muffle noise as you work. Use the economical IR 311A dual-action sander for feather edging, metal preparation, and finish work on body filler. The dual-action pad motion of the IR 311A produces swirl-free finishes. Features: * Adjustable built-in regulator for positive speed control * Balanced ball bearing construction * Low vibration What"s In The Box: * Ingersoll Rand 311A Heavy Duty Dual Action Quiet Air Sander with 6-inch Pad