The Ingersoll Rand 7 in. Vertical Air Sander provides up to 5,000 RPM free speed. You can work faster on light and heavy sanding jobs, including rouging body filler, removing rust, and smoothing welds. Planetary gear reduction for long life 5,000 RPM free speed and 0.75 HP motor 7 in. diameter to cover more space and handle tasks more efficiently Lightweight at only 4.5 lbs. for complete tool control 7 in. Vertical Air Sander - 319A .