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> Rotring isograph pen 0.25MM techical professional
Rotring isograph pen 0.25MM techical professional
A professional technical drawing pen made by Rotring, renowned for quality and durability.
The Isograph has a refillable ink reservir. Its patented push-on sleeve makes for easy cleaning. The push-on sleeve can be removed to clean, even when the reservoir is full.
Line widths to ISO 128 and DIN 15 for drawing and ISO3098/1/DIN6776 for lettering.
Colour-coded nib for ease of identification.
Ideal for technical drawing work on a variety of paper surfaces such as tracing paper, vellum, drawing paper and lineboard.
* Pressure equalisation system means you never need to clean the ink helix
