This professional set from Bosch features a 1/4" sheet orbital finishing sander and a textured 5" palm-grip random orbit sander. Both tools are equipped with low-vibration engineering and a motor with a 12,000 OPM speed for quick and clear results on all surfaces. The orbital sander features a high-precision aluminum sanding pad for easy work and increased durability. The microfilter dust collection cartridge comes with a screw cap for quick cleaning. The traditional fastening system includes a non-slip grip for one or more abrasive papers (pad also accepts stick-on paper). Dust is collected through the pad for a cleaner workspace. The sanding function allows sanding on 3 sides (front, right and left) along vertical surfaces. The random orbit sander features an integral pad dampening vibration dampening braking system to prevent swirl marks, a microcellular backing pad for a smooth, fine finish, and a built-in microfilter dust collection system. Backed by a 1-year limited warranty.