Using the DeWalt DWE7800 drywall sander is easy. First, attach the sandpaper or mesh to the 9-inch hook-and-loop sanding pad. Connect the sander to a DEWALT dust extractor using the Airlock™ connection for a clean workspace. Turn on the sander and use the variable speed dial to adjust the speed according to your needs. The dual-action trigger allows you to choose between momentary and locked-on usage. Keep the articulating head at the right angle to reach different parts of the drywall. When you're done, unplug the sander and clean the sanding pad and the dust extractor. Store the sander in a dry place. Always wear safety goggles and a dust mask when using the sander to protect yourself from dust and debris.