Ingersoll-Rand 4151 Ultra Duty 6-Inch Vacuum Ready Random Orbit Pneumatic Sander 12,000 RPM free speed for swirl free finishes Durable, lightweight composite design weighs less than 2-Pound Vacuum-ready, low vibration Interchangeable grip rings available to match operator hand sizes 1/4-Inch air inlet; 8 CFM air consumption 12,000 RPM free speed for swirl free finishes Vacuum-ready, low vibration Interchangeable grip rings available to match operator hand sizes 1/4-Inch air inlet; 8 CFM air consumption