World's Finest-Writing Ball Point Pen

Nari commented, in response to Joe's World's Finest–Writing Ball Point Pen post:

I'm fascinated about how these pens and tips are manufactured to such stringent tolerances - are there any details (preferably step by step} available of the manufacturing process? appreciate a link.

I responded:

Hi, Nari. I am the bookofjoe staff member who has been assigned to your pen question.

The tips of the Uni Ball Signo Bit 0.18mm series of ballpoint pens are roughly the width of two human hairs and can be used to write on a grain of uncooked rice. In order for the ball to rotate, Mitsubishi developed proprietary ink that reduces friction.

Besides that, I can't find more information online. I would guess that because the ink is the clincher and it is proprietary, they won't tell anyone much else.

Their UK e-mail address is [email protected] if you want to try to get more information. If that doesn't help, their Japanese site also has a contact page: http://www.uniball-na.com/main.taf?erube_fh=uniball&uniball.submit.email=true.

I hope this helps. Thank you so much for your interest in bookofjoe and best wishes in your search for more information on the pen. If we can be of further assistance, please let us know. Until then, we look forward to exploring our many new finds with you on bookofjoe.com.

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