Beautiful pen! I just turned my first piece of HRB yesterday. It is maybe one of the nicest looking woods I've turned.
I had a a piece 1.5" square X 6", so I used it on a Rockler Pizza Cutter.
I am so impressed with this pizza cutter that I just bought 6 more today. (They are normally $17.99, but on sale for $11.99). The website does not show the sale price, but I called them and placed a phone order.
Sorry, I didn't really mean to hihjack the thread, I'm just really impressed with this device!