The Dust Extracting Attachment (196520-1) is part of a dust extraction solution when used with the Makita 18V LXT® Sub-Compact Brushless 6-1/2” Circular Saw (XSH04ZB) or corded 7-1/4" Circular saw (HS7610) and a vacuum. The Attachment allows a connection between the saw and vacuum hose for improved dust extraction during cutting applications. It is constructed with durable plastic for longer life, and installs quickly for added convenience. Note that the saw, vacuum and vacuum hose are all sold separately.