The Dust Extractor Attachment with HEPA Filter (model 135905-6) is for use with Makita 1" Rotary Hammers, models HR2661 and HR2651 (all rotary hammers sold separately). The attachment captures concrete dust during drilling and is powered by a secondary motor fan blade in the tool to maintain efficient dust suction performance when activated by the tool’s trigger. It features an efficient HEPA filter engineered to capture 99.97% of dust particles (size .3 microns and larger) for improved dust collection. The high-capacity dust container is clear and provides an accurate level indicator of collected material, and has a quick release and can be easily detached from the dust collection attachment when needed. Added features include a depth stop adjustment that allows drilling up to 7-7/16” deep and up to 1” diameter bits.