Thank you all for your kind comments and encoragement.
In answer to a question, the the cap threads are 12.0 X0.8 triple lead.
I used carbide drill bits but HSS would do well also.
Kind Regards,
Doc
Great looking pen. One to be really proud of. Where did you obtain the 12.0X0.8 triple lead taps and dies. I know nothing from metric. I'm an imperial kind of guy.
Very cool! I have a question. How many bolts does it take to make one pen?