Features and Benefits: * Long-life, ball bearing construction * Dead handle and spindle for easy handling * Built-in regulator * Up to 2500 RPM in free speed * Polisher and or Buffer pad diameter is 7" A versatile tool with a high free speed range of 1,500-2,500 RPM for buffing and polishing a wide range of surfaces - paint, metal and plastic to a high-gloss professional finish. With its heavy duty motor, this polisher can handle the toughest jobs. Pad Diameter: 7"; average air consumption: 8 cfm; sound dBA: 97.3/110.3; air inlet: 1/4"; minimum hose size: 3/8"; spindle size: 5/8"-11; Weight: 4.2 lbs.