Electrical hand saw

A power-operated hand sword saw, comprising a stationary sword having a lower side;

• a reciprocatable saw blade received in said lower side of said sword and having a rear end portion;
• a machine housing having a transmission outlet in which said rear end portion of said saw blade is received so that said saw blade extends forwardly from said machine housing, said machine housing having a first longitudinal slot substantially parallel to and located under said rear end portion of said saw blade;
• and a suction passage releasably mounted on said machine housing flush with a lower side of said machine housing and formed as a closed passage interrupted by a suction pipe opening and a sucking-an opening, said sucking-in opening being formed as a second longitudinal slot extending through a front end side of said suction passage and through an upper side of said suction passage, said first longitudinal slot opposing said second longitudinal slot of said machine housing located under said rear end portion of said saw blade.