To prevent the scattering of chips of an article to be machined after cutting by fixing the article to be machined accurately.

This vise is provided with a base 10 and a movable body 20 installed on the base 10 movably in the X axis direction. A projection 15 is formed on the upper surface of the base 10 and the article to be machined can be held between the projection 15 and the movable body 20 and a groove 16 is formed on the upper surface of the base 10 by providing a slit 25 cut out in the Y axis direction on the upper part of the movable body 20 and also by cutting out the base 10 upper part faced to the slit 25.