Tachikawa Comic Nib Fountain Pen - School G Model Nib - Fine - Black Ink

The media could not be loaded.  Very fine and rough nib , waste of money. Only straight lines are seen and that too is less than 0.5 mm.

This is definitely not a fountain pen for writing; it's too thin and scratchy to be a comfortable experience. What it does do well, however, is produce a razor sharp, finer than hair line with light pressure, and then smoothly transition to up to a 0.6 mm line. You MUST use it regularly or the ink dries up, leaks, etc and permanently damages the pen in many cases. I really can't emphasise just how fine the line is- don't bother with the Extra Fine because the Fine is just as thin as that one, but with the ability to flex out to a wider width for bolder lines. I have tried some super fine fountain pens in my time- Platinum Carbon, Pilot Kakuno EF- and plenty of dip pens. Nothing writes a thinner line than this thing except maybe a Mapping or Spoon nib.The stock ink in the cartridge is as black as proper drawing ink. Very crisp and clean, zero feathering on any paper I've tried it on, and 80% waterproof once it's dried. This makes it an excellent choice for details on watercolour sketches if you don't mind a tiny bit of bleeding. For sketching- it works if you're drawing small, about A5/ A4, because on really long, fast strokes it will skip. Because the nib is so fine, it can snag on the fibres of cheaper paper, so best use it with high quality sketchbooks and notebooks. Paper made for fountain pens will work best, but so will Bristol board. The smoother the paper, the more pleasant the nib feels. Trying to use it on cheap, rough sketchbook paper would be like nails on a chalkboard.As for refilling- you can of course buy the cartridge refills, but if you want better flow and a smoother nib, this pen takes the standard Platinum converter! This means it can be filled with your choice of bottled inks, or even take a Platinum Carbon ink cartridge, which would make the ink 100% waterproof.To give you an idea of the line variation:With a super light touch and barely any pressure, the line width is comparable to a 0.05 Copic multiliner.With medium pressure, it's about 0.3.With heavy pressure, it's about 0.6-0.7.I would not push it past this point, but my guess is that with a wetter ink you could go up to 1mm, but then you risk damaging the nib. Basically it covers the gamut of the most commonly used fine liner sizes, so if you like using Microns or Copic Multiliners/ Uni Pin Fineliners for drawing or writing and are irritated by having to keep switching pens and throwing them away as the plastic tip wears down, this is an excellent, environmentally friendly alternative. And you get the whole wide world of fountain pen inks and different colours to choose from.I've been using these every day for a while now, and the nib, while initially stiff, softens up to become more flexible and responsive over time. It's also become much smoother to draw with, so much that I even like it for writing now. No leaks or hard starts so far.Recently I compared it head on with my favourite dip pens, including the Kuretake G nib and the Kuretake Saji (Spoon) nib. A real G pen nib is FAR more flexible, but also harder to control. Unflexed, however, they are roughly the same size. This is much more similar to the Spoon nib in terms of width and line variation. I prefer the Spoon nib to this fountain pen because it is firmer, more precise, but the Tachikawa fountain pen is 80-90% as good, so an excellent portable or lazy person solution.I don't usually write such comprehensive reviews but I could barely find any when I was trying to decide whether to get this pen, so I thought I'd leave my thoughts here in case they help someone out. I think this is a severely underrated pen, especially given the price. Get it.UPDATE: Have had a chance to use the Extra Fine as well. It is just a touch finer than the Fine, but stiffer, and easier to control if you just want to sketch with ultra skinny lines. I like having both, but gun to my head would probably pick the Fine. The EF is quite a bit drier- I fitted mine with a Platinum Carbon ink cartridge which as improved the flow considerably, and made it completely waterproof. Even the EF is capable of some line variation, but not as much as the Fine, which really is almost a semi- flex.

The product is very easy to use with ink spill recommended for very fine work

Very thin lines, as designed. Nice.

Most dissatisfied and disappointed