PC Pen Barrel Trimming System Including 3/8 inch, 7mm, 8mm and 10mm Pilot Shaft, 3/4 inch Steel Cutter and Hex Key Wrench and Sleeve Adapter Suitable for your different requirements For pens using 7mm, 8mm, 10mm and 3/8 inch pilot shaft. If you enjoy turning pens, then this kit is a must for your pen blank preparation process. Typically, after you have glued the brass tubes into your pen blanks and the tube is completely dry, it is common practice to clean, square and trim the ends of the blanks. The cutters mount in a drill chuck or lathe chuck, the shaft cleans and removes any excess glue from the tubes. Cleanly remove excess glue from your upturned pen tube and blank. Features: · Pen Mill Set (7 PC Pen Barrel Trimming System) · For pens using 7mm, 8mm, 10mm and 3/8 inch tubes System includes: 7mm, 8mm, 3/8 inch and 10mm pilots, 3/4 inch squaring cutter, "0" hex wrench O size arbor Fits over 7mm pilot to keep it centered Here's a project that serves 3 purposes: Makes using lathe