Rotring 1903399 Isograph Drawing Pen, 0.3mm, Burgundy

For professionals who need pinpoint accuracy in technical drawings, the Rotring Isograph technical pen delivers reliable, repeatable results. This refillable technical pen from Rotring combines a wear‑resistant chrome‑plated tip with a precise 0.3mm point to produce crisp, consistent lines for CAD, architectural plans and wiring diagrams. The visible ink reservoir lets teams monitor levels at a glance so projects keep moving without surprise downtime, and the burgundy ink offers a high-contrast option for revisions, monitoring reports and surveillance schematics.

Built for heavy use, the Isograph's patented push‑on sleeve gives fast access to the ink helix for thorough cleaning and maintenance, extending the pen's service life and protecting line quality. Compatible with tracing paper, vellum and lineboard, it’s a versatile tool for design studios, security planning, network schematics and facilities documentation. Choose the Rotring Isograph 0.3mm for professional-grade precision and lower operating costs—add it to your toolkit for clearer drawings and faster project turnaround.

• Achieve ultra-fine, consistent lines for technical drawings and schematics with the 0.3mm tip—ideal for CAD, drafting and security plan annotation
• Durable chrome‑plated, wear‑resistant tip preserves precision through heavy use, reducing rework and downtime
• Refillable ink reservoir with visible ink level minimizes interruptions and lowers long-term consumable costs
• Smooth burgundy ink provides high-contrast revisions and clear annotations for monitoring and surveillance diagrams
• Patented push-on sleeve allows fast access to the ink helix for quick cleaning and maintenance in busy workflows
• Versatile on tracing paper, vellum and lineboard—perfect for architects, engineers and security professionals