We offer pen kits in many styles, sizes and finishes. Each kit consists of the hardware and brass tubes needed to make a working pen (wood not included). Most of the kits we offer use 7mm, 8mm, 10mm or 3/8" brass tubes, and require the appropriate size drill bit to prepare the pen blank to accept the brass tube. The pen kits we offer are turned on our Pen Mandrel using the 7mm bushings that come with the mandrel. Other kits require different size bushings to fit on the mandrel. Necessary bushings and drill bits are listed with the kits, and instructions for each kit are included.