Wood pen kits are beautiful projects for any lathe turner. Wooden pen blanks are turned on a lathe and come in many different styles and colors, not to mention all the variety of woods. The pen mechanism and tubes are included in most kits. The pens are made by the use of a cutter head and pilot bit, the cutter bit about ¾" in size and they run around $15.00. The set is referred to as a pen mill.