Penn State Industries introduced the Vertex pens a couple of years ago. The metal nib and clip ends have hexagon sections. Ever since I first made one of the vertex click pens I thought how nice it would look if the barrel had a hexagon shape as well.
Click on the image below to begin download of PDF.
Authors: Don Ward and Pierre Bouillot
Click on the image below to begin download of PDF.
Authors: Don Ward and Pierre Bouillot
