992A Round: 4 1/2" OD hollow;
992B Square: 4 1/2" OD hollow:
992C Hex: 4 1/2" OD hollow;
All dies are made of machined 3/4 inch HDPE polyethylene. In general, the walls of extrusions 3-1/2 inches OD or less are 1/4 inch thick, while larger pieces have 5/16 inch walls. All dies have Counter-Sinking around the edges or where the brace passes through the extrusion. This is to add in healing of hollow shapes and give even pressure around the opening