In cases where there is a need to support the work piece in the vise so that its upper face is parallel to their lips, you will help offer a simple fixture. It consists of two identical right-angled triangles cut out of sheet aluminum. The first is mounted on the sled clutches; it is attached to two bent area of focus for sustainability. The second has a handle for convenience and two plates, limiters, not giving to slide off the bottom of the triangle. To use the device should be so. Install the lower angle on the thread that the clamp a workpiece, slide the top angle and moving it along the bottom, move to the workpiece from below. Then lightly spread your lips Ki vise to the workpiece is freely rests on the horizontal side of the polygon, and finally hold it.
V. SLAVUTA, To IEV