To facilitate positioning of a crown mold material with a stable posture.

In a table circular saw, a vice device 15 installed in a guide fence 11 is provided with an arm 17 that is vertically movable by a guide rod 16 and fixable at an optional vertical position and with a feed screw 19. In the opposite end from the feed screw 19 in the arm 17, there is installed a stopper plate 22 that is vertically movable along the guide face 14 of the guide fence 11 and fixable at an optional vertical position, wherein a workpiece is made fixable with pressure from above by selectively using the arm 17, the feed screw 19, and the stopper plate 22.