The 6" Rotex 150 E lets you do rough sanding in rotary random mode and then switch instantly to random orbital mode for finish sanding. You get the whole job done with just one sander. The sander design makes it easy to hold on vertical surfaces like hulls. Jetstream pad design makes dust extraction very efficient by preventing build-up on the abrasive, and also extends abrasive life by up to 30%. The dust hose connection is at the end of the tool where it belongs, out of your way.