The Festool RO 150 FEQ Rotex Sander is such a powerful sander and has been so refined that it effortlessly changes from coarse sanding, to fine sanding, to polishing simply, and requires no extra tools. Its 5 lb. frame and 720 Watts of power means it can take on any job. yet with minimal vibration and superior ergonomic design makes it easy to work with. The gear box of the Festool RO 150 FEQ Rotex Sander is completely enclosed and impervious to dust, making it extremely reliable, even in the most demanding environments.