Look up Starrett hold-downs. The images from Google are only showing the top view. If you have a Starrett catalog (printed version) it may have a better view. The way they work is after you face one side you put the set of hold downs into the vise. The machined surface goes against the bed of the vise and one hold down goes between the hard jaw and the part. The other goes between the movable jaw and the part. This will only get two sides parallel to each other. You would the clamp across the two parallel sides and then cut a third side. That gives you two square corners. Flip the part and continue with the rest. |