Fountain pen and rollerball pen kits can be made to look a bit different by excluding the finials that you would ordinarily press into position on the nib barrel and on the cap. The result is known as a closed end pen, and it allows the pen turner some extra creative freedom to put his or her own stamp on the overall appearance of the pen.
Closed end pen mandrels are used to hold the nib barrel and the cap on the lathe, and you can access instructions on how to use them, in the form of a tutorial, by clicking on the Instructions tab on the next page.