Get a smoother, swirl-free sanding finish with the disc-attachment, pad-dampening and pad-backing features of the Bosch 5-inch random-orbit sander. Mount the discs more firmly with a Hook-Tight hook-and-loop system, which has up to twice the amount of hooks than other available random-orbit sanders. Use the Bosch palm sander's pad-dampening system to slow the movement of the sander as you lift it from the surface.