Precision Pen Press, Bench mount and adjustable. I bought this ~10 years ago and have never used it. This is used for friction pressing small assemblies together but is called a pen press because it is popular among turners for assembling the various small pieces comprising a writing pen. There are a number of ways to assemble small parts, I have used clamps, a vise, and the quill of my drill press. This press is without a doubt much easier to use and much less likely to damage your finished parts.