Using the Milwaukee 2712-DE Dedicated Dust Extractor is easy. First, connect it directly to the M18 FUEL 1” SDS Plus Rotary Hammer. Then, adjust the depth stop and ruler according to your needs for accurate hole depths. When the work area is dark, turn on the LED light for better visibility. Remember to check the dust box regularly. If it's full, empty it to keep the extractor working well. When the HEPA filter gets dirty, replace it to maintain high - quality dust filtration. Also, if the nozzle shows signs of wear, replace it for better durability and pickup efficiency. Keep the tool in a dry place when not in use. This tool comes with a 5 - year warranty, so if you have any problems, contact the customer service.