a self - contained vacuum circular saw is presented . the vacuum saw has a casing around the saw blade that includes an accordion type lower section attached to the lower platform of the saw . a number of vacuum tubes , preferably four , are attached to the side of the circular saw opposite the blade . the armature of the circular saw that turns the blade also turns the vacuum impeller on the side opposite the blade . an impeller vacuum chamber pulls in the dust and debris created by the saw blade and discharges the dust and debris into a disposable and removable vacuum bag . an important aspect of this device is that the motor that turns the saw blade also turns the impeller , thus making the self - contained vacuum saw moveable from site to site .