For swirl free sanding, this Random Orbit Sander provides 10,000 orbits per minute for really smooth results, while 5/32 in. orbit diameter allows for fast aggressive material removal. Pressure sensitive adhesive sanding discs save time and provide hassle free paper changing. Peel them off, slap on a new one and you're ready to go again. A 5 inch backing pad comes as standard equipment but can be changed to a 6 inch for even more aggressive sanding. The side handle can be attached in three positions for maximum operator comfort and control.