It is helpful to secure the pen blank in a vise, or clamp it while trimming, which can help prevent tear-out. Chuck the trimmer in a drill and then trim the wood square and exactly flush with the tube, taking care not to shorten the tube appreciably.<br clear=all> | It is helpful to secure the pen blank in a vise, or clamp it while trimming, which can help prevent tear-out. Chuck the trimmer in a drill and then trim the wood square and exactly flush with the tube, taking care not to shorten the tube appreciably.<br clear=all> |