For surface preparation, the PRESTIGE APP790SET provides safe cleaning of harder dirt and rust areas before fine sanding takes place. The 3" tool can also be used for alloy wheel refurbishment and general cleaning and sanding in the smart repair and body shop industry. Kit Contents: x1 Pistol Surface Prep Tool x1 3" female screw lock backing pad x10 3" 60 grit male screw lock sandpaper x10 3" 80 grit male screw lock sandpaper x10 3" 120 grit male screw lock sandpaper x1 3" fine screw lock conditioning pad x1 3" medium screw lock conditioning pad x1 3" coarse screw lock conditioning pad x1 Hex Wrench Product Features : 16,000RPM for efficient sanding/cleaning Safety speed regulator locks in motion to prevent accidental speed change during use Efficient powerful motor for high volume, professional applications Low vibration and low noise performance for safety and comfort in use 3" female screw lock backing pad 3 grades of male screw lock sanding paper and 3 grades of male screw lock c