Refillable ink reservoir is ideal for frequent drawers. These pens have a cartridge so you need to purchase ink to keep the cartridge filled.

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The tips on these pens can be fragile so you need to be careful when cleaning them and taking them apart. I have used rotring isograph for many years and find they are the most reliable of the technical pens (better than rapidograph) particularly if you avoid nib sizes less than 0.25 or greater than 0.50. Ink not included. The ink it comes with is also fantastic, waterproof on both smooth and textured surfaces such as cold press watercolor paper. technical & calligraphy pens accessories Select Product Category compasses mechanical pencils stylus fineliner pen technical pens calligraphy pens drawing boards multipens ballpoint pens rulers / set squares erasers leads, inks & refills tips & nibs My first try at filling the cartridge I really made a mess. Screw the barrel back on and gently shake your pen with the lid on to get the ink flowing to the nib.

Rotring Rapidograph 0.18mm Technical Drawing Pen (S0203150) No matter what you’re working on, the superior design and high quality construction of the Isograph pen enables you to be technically perfect, every time.

Rotring Isograph Set of 8 Pens. Whenever any slight intermittent/blocking happened (not often) I just shake the pen a bit and, whoa-la! The nib, & even the fine wire, can take it -- the challenge is my needing a very steady hand, and very good small jeweller's pliers to hold the wire just above the nib, and then to drop it absolutely straight down in. I got these pens mainly because they are more eco-friendly and cheaper in the long run you just fill up the reservoir with your ink instead of wasting money on buying one time use fineliners or plastic refill cartrages. Great investment. 23ml bottle of ink for the Rotring Isograph technical drawing pens.Technical drawing pens with a refillable ink reserve.A 250ml bottle of high-quality ink for Rotring Isograph drawing pens.A deluxe drawing set with a variety of outstanding creative tools.A deluxe drawing set for professional technical drawing tasks.A Rotring Isograph drawing set containing essential precision drawing tools.Replacement ink cartridge for the Rotring Isograph technical drawing pen.Replacement nibs for Rotring Isograph technical pens.An essential design kit for professional technical drawing.A practical drawing set for professional designers including a variety of precision drawing tools.Ink cartridges made for the Rotring Rapidograph technical pens.Technical drawing pens made specifically for drafting and tracing paper.A professional quality drawing station for drafting designs, architecture and illustrations.A combined eraser for correcting pencil and ink lines.Replacement nibs for Rotring Rapidograph technical pens.A precision drawing set for drafting on vellum, drawing paper or tracing paper. Please try againSorry, we failed to record your vote.

For a time these work I have 8 of them all stopped working after the first use of rotring cleaning fluid. Wear-resistant, hard chrome-plated thin tip allows exquisite detail work. Your recently viewed items and featured recommendations Line widths are easy to read with color-coded barrels, so you can work faster and more precisely. Rotring’s black technical ink gives you the densest, blackest line on the market.Changing the nib on an Isograph Pen is very easy. It doesn't come with any ink or means to fill it; but it's kind of assumed that you own all this stuff.