Bolt Action Pen

I machined a pen with a bolt action mechanism out of copper.

Machined bolt action copper pen

I machined most of the pen's body and the bolt mechanism on a manual lathe. The "J slot" was machined on a manual knee-mill (I didn't have access to a dividing head).

Drawings

Bolt action pen drawing 1
Bolt action pen drawing 2
Bolt action pen drawing 3