Normally you will mount a MAndrell on the head stock, when turning pens. A live center with a 60% point on it fits into the tail end of the mandrell, tight enough so that it will not slip without you holding it and putting pressure on it.
Don't know what kind of pen you're going to turn. If a slimline, you will get a set of 7mm bushings with Woodcrafts "Pen and Pencil Makers Manderl" P/N 141469 (#2mt) for 12.99. Bruce
Bruce Shiverdecker - Retired Starving Artist ( No longer a Part timer at Woodcraft, Peoria, Il.)
"The great thing about turning is that all you have to do is remove what's not needed and you have something beautiful. Nature does the hard part!"