The Makita BO5012K is a 5 inch Variable Speed Random Orbit Sander. The Makita BO5012K Variable Speed Random Orbit Sander is perfect for polishing, finishing sanding and abrasive work with OPM ranging from 4000 to 12000. The Makita BO5012K features true random orbit action for a swirl-free finish. The Makita BO5012Ks ergonomically designed rubberized palm grip ensures comfort and control and its ultra-efficient dust collection system keeps the grit out of the way. The dust bag adjusts 360º to keep the bag conveniently out of the way.