38 Copper - Ballpoint ISO G2 (Parker) - Round Nose
I just made a small batch of this variation. Well balanced, smooth finish, and round nosed.
Copper is unlike any other material out there. This material is C110 copper and it is difficult and picky to work with. The machined finishes glow. The weight and feel is super satisfying.
Twist mechanism with triple start screw thread is super simple and reliable.
Carbide drill makes the hole in the tip at very precise tolerance of 25 micron. Ballpoint style refills fit very snug in the tip leaving no room for the refill to click around in the pen. Comes with a very smooth writing ISO G2 (Parker) style Schmidt 9000 EasyFlow.
I will stand by every pen let me know if you ever have any issues and I will get them fixed.