<p>A rotational shaft 6 rotatably holds first and second arms 2 and 4. A sheet glass having a scribe line formed thereon in advance is pinched among rollers 24 and 45. When handles 20 and 40 are actuated to narrow a distance between rollers 24 and 45, the roller 45 moves in a Y-axis direction and an impact shaft 51 impacts the sheet glass, accordingly. The sheet glass can be thereby easily cut into pieces along the scribe line and a sectional quality having a smooth cut surface can be ensured for the sheet glass.</p>
