Some great news on the refill front.
One of our customers asked if we could make a pen that uses the smooth writing fine 0.7mm Zebra brand refills. After getting our hands on one and comparing it to some of our existing refills, the answer is YES!
The Zebra refill is slightly smaller than the Parker style refills that many of our twist pens use. Smaller is better in this case because it means we can supply and adapter to extend the length and allow our twist mechanism to extend and retract the refill properly. The writing tip is slightly smaller where it extends from the pen tip, but in most of our pens it’s not noticeable when writing.
Tested with refills designed for the Zebra F-301 series as seen here: http://www.jetpens.com/Zebra-F-Refill-Ballpoint-Pen-Refill-0.7-mm-Black-Pack-of-2/pd/5864
If you are interested in using one of our pens with a Zebra refill, please contact us directly and let us know which pen from our website and we can say yes or no for this exciting option.