Due to the continuous updating and special design, the universal dividing  head of U2  graver grinder can rotate 180 or 360,   in addition to the  settings  of   pushing angle and  clearance angle.  The movable   pusher enables  the  grinding  of the  negative  pushing angle  more easily.  It  is  very  convenient  to  grind  circular, semicircular, positive angle  of taper, back draught shaped cutters with single edge, or cutter punches of right, triangular, four, multi angles,  or diamond shape.  It is free of  complicated settings. In addition,  the dividing head can  be set every 15°.