Some are as simple as loose storage on the top while others offer stand-up points or slots for specific accessories to store. If you’re going to use your dust extractor to clean the floors in your shop or on the site, take a look at the onboard accessory storage. But they’re unique, so don’t expect to find that feature in other models. If you need to clear the filter without turning the vacuum on, it’s nice to have. Metabo features a cleaning cycle-only mode on their dust extractor. For $500+, you don’t want 10 gallons of spilled water to mess up your 9-gallon dust extractor. Those that do include some kind of sensor to shut off the unit before any liquid reaches the motor. When you go to buy a Pro-level dust extractor, not all carry a wet/dry vac rating. When you need full collection power, use a separate power source for the tool. Pro Pick: While nearly every Pro-level dust extractor has this, there are only a handful of trades that will use it. Festool’s CT 36 Auto Clean lets you dial in the frequency of filter cleaning from 12 seconds down to none at all. ![]() Some dust extractors allow you to turn this feature off – something to consider when you realize that you lose suction power during the cleaning cycle that occurs every 15 seconds or so. It adds to the price, but it’s an effective method to extend the filter life and keep dust from inadvertently escaping. Metabo uses an electro-mechanical system to vibrate their filters clean. That can potentially limit the life of the filter since it’s only designed to push air one way. Most dust extractors use reverse airflow to clean their filters. You’ll lose even more if your unit doesn’t have this feature. The dust extractors we’ve tested lose between 1% and 7.5% of their performance once we’ve sucked up some dust – and that’s with the filter cleaning. Hilti TE6-A22 + TE DRS 6 -AT1-BA drilled 31 holes on a 5.2-Ah battery or 0.17 Ah per hole. Max hole-cutting capacity in concrete is 1 inch. ![]() The dust-extractor attachment is larger than the average of this group and the rail is on the shorter side. You won’t find auto filter cleaning on every dust extractor, but it’s nice to have. The dust extractor has a translucent extractor box to tell how full it is. For a good all-around dust extractor, look for at least 90″ of static water lift. Pro Pick: Like CFM, the application matters.
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