The oscillating motion ensures quiet operation and facilitates cutting. The variable speed between 3,000 and 10,000 rpm ensures the correct speed for every material. This motion also allows the use of cutting blades. The self-adhesive pads allow quick change. Four sanding pads (80 and 280 grit, 2 each) are included. A sturdy plastic carrying case is provided. Made by Proxxon Tools of Germany.