The rapidograph uses rotring's unique capillary cartridge. The pressure-equalization system, including ink helix is part of the ink cartridge which ensures that every time you change the cartridge, you get a clean new ink helix. This means that you never need to clean the ink helix and top reliability is guaranteed.
Rotring Rapidograph 0.2mm Technical Drawing Pen (S0203230)
rOtring Isograph Technical Drawing Pen, Replacement Nibs, 35 mm : Everything Else
rOtring Isograph Technical Drawing Pen, Replacement Nibs, 35 mm : Everything Else
Find the Koh-I-Noor Rapidograph 3165 Technical Pen at Michaels. com. This 3165 Series technical pen is a reliable, high quality pen for draftspeople, designers, engineers and more. For use on paper and drafting cloth, it is for universal use with drawing and specialty inks. This 3165 Series technical pen is a reliable, high quality pen for draftspeople, designers, engineers and more. For use on paper and drafting cloth, it is for universal use with drawing and specialty inks.
Koh-I-Noor Rapidograph 3165 - Technical Pen - 0.3 mm
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STAEDTLER Mars Matic 700 M013 Technical Pen - 0.13 mm : Technical Drawing Pens : Office Products
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9+ Best Pens for Artists in 2024
9+ Best Pens for Artists in 2024