49.50 GBP
Rotring Isograph Technical Drawing Pen | 0.25 mm | Refillable Fineliner Pen
High precision pen with refillable ink reservoir for drawing - The hard chrome-plated thin tip produces exquisite, detailed work - The wear-resistant tip prevents dripping and blobbing - Designed so that ink level is clearly visible, so you know when it's
Stores where to buy this product
londongraphics.co.uk
Joom UK
Introducing the Rotring Isograph Technical Drawing Pen
The Rotring Isograph Technical Drawing Pen is a precision instrument designed for architects, engineers, designers, and artists who demand flawless line quality in every sketch. With its 0.25 mm tip width, this fineliner delivers crisp, consistent strokes that are ideal for technical drawings, architectural plans, mechanical schematics, and detailed illustrations.
Key Features & Specifications
- Tip Width: 0.25 mm – perfect for fine lines and precise detailing.
- Ink Type: Water‑resistant ink that resists smudging, ensuring clean, long‑lasting marks on paper.
- Barrel Colour: Burgundy – a distinctive, professional look that stands out in any studio or office setting.
- Colour Options: Black ink for maximum contrast and clarity.
- Form Factor: Felt pen construction provides ergonomic comfort during extended use.
- Recyclable: Not recyclable – designed for durability and performance over environmental considerations.
- Pack Quantity: Single unit – each pen is a standalone, high‑quality tool.
- Warranty: 2 years of manufacturer assurance on the mechanical integrity of the pen.
Why Choose the Rotring Isograph?
The Rotring Isograph is engineered to meet the exacting standards of professional drafting. Its 0.25 mm tip aligns with ISO 128/3098 line conventions, enabling seamless integration into standardized technical drawings. The water‑resistant ink guarantees that lines remain sharp even when exposed to moisture or light handling.
Its burgundy barrel not only offers a striking aesthetic but also provides a comfortable grip, reducing hand fatigue during long drafting sessions. The pen’s felt construction ensures a smooth writing experience, while the robust build guarantees longevity and reliability.
Applications Across Industries
- Agricultural & Civil Engineering: Precise contour lines for topographic maps.
- Mechanical Design: Fine detailing of parts and assemblies.
- Architectural Drafting: Accurate floor plans, elevations, and sections.
- Illustration & Concept Art: Detailed line work for character designs and environments.
- Educational Settings: Teaching tool for geometry, drafting, and design courses.
Technical Excellence in Every Stroke
The Rotring Isograph Technical Drawing Pen embodies precision engineering. Its 0.25 mm tip is manufactured to tight tolerances, ensuring that each line is uniform and true to scale. The water‑resistant ink formulation prevents feathering and bleeding, which can compromise the integrity of technical drawings.
Because the pen is a felt pen, it offers a stable writing surface that resists slippage, allowing artists and technicians alike to maintain control over line weight and direction. The ergonomic design reduces strain, making it suitable for extended periods of use without compromising accuracy.
Product Integrity & Standards
The Rotring Isograph complies with industry standards for technical pens, classified under the EC Commodity Code 96083000 and Industry Standard Product Classification 16132. These classifications confirm its suitability for professional drafting applications worldwide.
Conclusion
For anyone who requires uncompromising line quality in technical drawings, the Rotring Isograph Technical Drawing Pen – 0.25 mm stands out as a premier choice. Its combination of precise tip width, water‑resistant ink, ergonomic burgundy barrel, and robust construction makes it an indispensable tool for professionals across engineering, architecture, design, and illustration.
Elevate your drafting experience with the Rotring Isograph, where every line is a testament to precision and craftsmanship.
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Category
This product is cataloged in our store in these categories
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- Technical Drawing Supplies |
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International
Find this product in one of our international stores
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 76.68 EUR  16.53 CHF  33.68 EUR  50.05 EUR  39.72 EUR |
| Colors
Predominant colors of the product |
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| Tags | 0.25 mm ROtring Isograph Technical |
| Identifiers | |
| Brand | Rotring Rotring is a brand of high-quality technical pens and pencils. The company was founded in 1928, and is now a subsidiary of the Japanese company Mitsubishi. Rotring pens and pencils are known for their high quality and durability, and are popular among artists and engineers. |
| MPN | Rotring 1903398 |
| ID | 20086581 |
| Dimensions / Weight | |
| Key Features | |
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Barrel Colour The colour or combination of colours that a product’s barrel is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the barrel for consumers.
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Burgundy |
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Colours A colour is a visual attribute that describes the hue or shade of an object or surface. It can be a single dominant colour, a combination of colours, or a range such as "Black, White". The value may be expressed in common names (e.g., Black, Silver) or descriptive terms (e.g., One Colour, Assorted).
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Black |
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Contents The total count of individual units included in a single product package or bundle. It represents how many discrete items—such as pens, sheets of paper, batteries, or other consumables—are available when the product is purchased. The value may be expressed with or without a unit label (e.g., "12 Pieces", "500 Sheets").
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Pen - ink not included |
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EC Commodity Code A numeric or alphanumeric identifier that classifies goods for customs, trade, and logistics purposes. It is used by governments, importers, and distributors to determine duties, taxes, and regulatory requirements for a product.
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96083000 |
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Form factor Specifies the physical configuration or design of a product, such as ATX, Micro‑ATX, Mini‑ITX, tower, case with cover, etc. It describes how the device is built and what mounting or expansion options it supports.
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Felt pen |
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Industry Standard Product Classification The general category or style of the product, such as laptop, printer cartridge, or cooling fan. It helps buyers quickly identify the nature of the item and compare similar products.
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16132 |
| Ink type | Water Resistant |
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Pack quantity The total number of individual units contained within a single package or bundle. This value helps customers understand how many pieces they receive when purchasing the product, and it is useful for inventory, shipping, and comparison purposes.
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1 |
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Recyclable Indicates whether the product’s material can be recycled, including statements of availability or specific recycling instructions. The value may be a simple yes/no answer or a percentage such as "95% Recyclable". This attribute helps consumers identify items with recyclable content and understand any limitations.
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No |
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Tip width The linear measurement of a pen’s tip, expressed in units such as millimetres or inches. It indicates how wide the writing point is from one side to the other and helps users determine suitability for different writing styles, ink flow, and precision.
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0.25mm |
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Type The general category or style of the product, such as laptop, printer cartridge, or cooling fan. It helps buyers quickly identify the nature of the item and compare similar products.
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Technical Pens |
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Warranty The length of time for which the manufacturer guarantees that the product will be free from defects in materials and workmanship, typically expressed in years or months.
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2 Years |
