The MILWAUKEE HAMMERVAC 1 in. Dedicated Dust Extractor (2912-DE) features an inline design engineered to connect directly to and be power by the M18 FUEL 1 in. SDS Plus Rotary Hammer (2912-20 and 2914-20). Utilizing the same replaceable certified HEPA filter as other HAMMERVACS, which filters 99.97 Percent of all particles greater than 0.3 um, means more compatibility on the jobsite. The built-in adjustable depth stop and ruler offers easy and precise adjustments. The dust extractor allows full OSHA Table One Compliance when drilling up to 1 in. diameter and 6 in. in depth. This extractor features our AUTOPULSE Filter Cleaning Mechanism that automatically cleans the filter after each use, ensuring more effective drilling for longer before needing to empty the dust box. The dust box comes equipped with a vacuum port that allows for suctioning out the dust with a large vacuum or dust extractor (such as the 8960-20) instead of dumping the dust out into a trash receptacle, ensuring minimal exposure.