For those mentioning ball-tip pens: most of them use totally different ink formulations.
Liners tend to use simple, nearly pure carbon pigment.
As far as I know, the only widely-available ball pen that uses this kind of ink is the Ohto Graphic Liner.
The 005 is more like an 015, and it's awful on some papers, but it's the only real choice for shit like rough cardstock that chews up plastic tips.
Pic related. Shouldn't be hard to find, JP sells it.
I suspect the reason Ohto did it is because they don't make plastic-tips, so they're not afraid of cutting into any profits.
>>3812741Yeah, Uni Pins (the water-based ones) use a significantly harder polymer, so they last longer. Unfortunately less control due to the smoother surface.
Zig Milleniums are also more durable than most, without as much sacrifice in terms of control, but they're tough to find in the US.
