---
product_id: 49955773
title: "rOtring Isograph Technical Drawing Pen | 0.35 mm | Refillable Fineliner Pen"
brand: "rotring"
price: "€ 50.68"
currency: EUR
in_stock: true
reviews_count: 13
category: "R Otring"
url: https://www.desertcart.pt/products/49955773-rotring-isograph-technical-drawing-pen-0-35-mm-refillable-fineliner
store_origin: PT
region: Portugal
---

# Refillable ink reservoir for sustainability 0.35mm ultra-fine precision tip Wear-resistant chrome-plated tip rOtring Isograph Technical Drawing Pen | 0.35 mm | Refillable Fineliner Pen

**Brand:** rotring
**Price:** € 50.68
**Availability:** ✅ In Stock

## Summary

> ✏️ Draw the future with precision and purpose.

## Quick Answers

- **What is this?** rOtring Isograph Technical Drawing Pen | 0.35 mm | Refillable Fineliner Pen by rotring
- **How much does it cost?** € 50.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/49955773-rotring-isograph-technical-drawing-pen-0-35-mm-refillable-fineliner)

## Best For

- rotring enthusiasts

## Why This Product

- Trusted rotring brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pinpoint Precision:** Experience flawless 0.35mm lines for your most detailed technical drawings.
- • **Ink Level Transparency:** Clear reservoir window means you never run dry mid-project—stay in the creative zone.
- • **Sustainable Creativity:** Refillable ink system reduces waste and keeps your workflow eco-friendly.
- • **Durability Meets Design:** Hard chrome-plated tip ensures smudge-free, drip-proof performance every time.
- • **Versatile Surface Compatibility:** Perfectly engineered for line board, tracing paper, vellum, and more.

## Overview

The rOtring Isograph 0.35mm technical drawing pen combines ultra-fine precision with a durable, wear-resistant chrome tip and a refillable ink reservoir. Designed for professionals who demand consistent, smudge-free lines on various surfaces, it features a transparent ink window for easy monitoring and supports sustainable, cost-effective creativity.

## Description

High-precision 0.35mm pen with wear-resistant chrome tip for detailed, smudge-free drawings. Refillable ink reservoir and clear ink level visibility for easy maintenance.

Review: My favourites! - These are my favourite pens! Such fine lines although they can be bothersome to clean. I use these for drawing rather than writing and the quality is impeccable. They are on the more expensive side but nowhere else can I get such consistently fine lines. I like that they are refillable (the isographs so much more so than the rapidographs). For good consistent flow without having to clean them, these pens need to be used regularly. Weeks without using them can lead to splotchy lines or blocked pens.
Review: Reliable. ink flow joy. Refillable and sustainable. Zero waste. - This is a great pen. It draws smoothly and reliably. Takes India Ink which is waterproof and permanent. Way cheaper and sustainable to use a refillable pen than keep buying disposable pens. I bought a 250ml bottle of ink; way cheaper than the tiny ones. The steel nib will last forever. I use it most days. But if I leave it for a while, a good shake and the ink flows like a dream. I had been using cheaper brands, which were fine for a while, and then clogged and stopped working, even after extensive cleaning and faffing about. Grrr factor 10/10 after several months of use. As an artist and not a technical draughtsperson, I really rate these pens. Mine is a 0.6 nib. Can't vouch for the reliability of the finer nibs. However, it is too easy to over-tighten the grey nib holding section against the handle / barrel. Mine has a hairline crack, allowing the barrel to rotate a bit and be annoying. But it does not affect the drawing function, or ink flow, just the handling of the barrel. Still useable, but would like a better quality plastic at that point in the design. I have not been heavy handed with it. It was just a bit weak there on the thread. Having said which, it is far superior to the cheaper brands. I wasted money buying several cheapos, thinking I had simply bought a rogue pen initially. Not so. The working parts were just not as good as Rotring. Invest in the best.

## Features

- High precision 0.35 mm 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 time to replace the ink
- Ideal for use on a variety of surfaces including line board, tracing paper and vellum drawing paper

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0007OEB1I |
| Age Range Description | Adult |
| Artistic Charcoal Form | Compressed Charcoal |
| Best Sellers Rank | 13,015 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 3 in Technical Pens |
| Body Shape | Cylindrical |
| Brand Name | rOtring |
| Closure Type | Retractable |
| Colour | Black |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,927) |
| Drill Point | Fine |
| Global Trade Identification Number | 03501179034003, 04006856151077 |
| Grip Type | Ribbed |
| Hardness | H |
| Included Components | Pen |
| Ink Base | Hybrid |
| Ink Colour | Black |
| Is the Product Left or Right Handed? | Ambidextrous |
| Item Diameter | 1.3 Centimetres |
| Item Dimensions | 14.2 x 4 x 2.2 centimetres |
| Item Weight | 0.04 Pounds |
| Line Size | 0_3mm |
| Manufacturer | Newell Rubbermaid |
| Material Type | Plastic |
| Model Name | Isograph |
| Model Number | 1903400 |
| Pattern | Letter Print |
| Recommended Uses For Product | Drawing |
| Special Features | Refillable |
| Style | 0.35 mm |
| Subject Character | B0007OEB1I |
| Theme | Technical Drawing" or "Art |
| UPC | 711668889394 |
| Unit Count | 1.0 count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Technical Pen |
| Writing Technique | technical pen |

## Product Details

- **Age range (description):** Adult
- **Brand:** rOtring
- **Colour:** Black
- **Ink colour:** Black
- **Material:** Plastic
- **Model name:** Isograph
- **Point type:** Fine
- **Special feature:** Refillable
- **Unit count:** 1.0 count
- **Writing instrument form:** Technical Pen

## Images

![rOtring Isograph Technical Drawing Pen | 0.35 mm | Refillable Fineliner Pen - Image 1](https://m.media-amazon.com/images/I/61hpi4RhybL.jpg)
![rOtring Isograph Technical Drawing Pen | 0.35 mm | Refillable Fineliner Pen - Image 2](https://m.media-amazon.com/images/I/61R+XejcgUL.jpg)
![rOtring Isograph Technical Drawing Pen | 0.35 mm | Refillable Fineliner Pen - Image 3](https://m.media-amazon.com/images/I/81jWrTgPWJL.jpg)
![rOtring Isograph Technical Drawing Pen | 0.35 mm | Refillable Fineliner Pen - Image 4](https://m.media-amazon.com/images/I/61qO4ek84ML.jpg)
![rOtring Isograph Technical Drawing Pen | 0.35 mm | Refillable Fineliner Pen - Image 5](https://m.media-amazon.com/images/I/919msp9t6RL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can you use acrylic inks in this pen?**
A: I have only ever put Rotring’s ink in these pens. However, when left to dry, this ink is waterproof. I can apply very wet watercolour paint over the top and it does not run in the slightest.

**Q: Does this include a cap for the pen?**
A: Yes the 0.7mm does include a cap clearly marked on the top end 0.7mm in white lettering. The pen reference No:- Art. 151 070. Complete with instruction detail sheet to advise on maintaining your pen should also be inside the Pen Box in which should be provided with your order.

**Q: Can you use cartridges instead of filling it from a bottle**
A: I know there's a difference between Isiographs and rapidographs, one only takes cartridges and one you fill up with ink as it has a little detachable tube you unplug and fill up with ink. It should be self evident when you buy it as the Isiograph will have a cartridge already installed in it....hope that helps?

**Q: Has anyone used acrylic waterproof inks with Rotring isograph?**
A: They would block the Pen

## Customer Reviews

### ⭐⭐⭐⭐⭐ My favourites!
*by I***A on 12 October 2025*

These are my favourite pens! Such fine lines although they can be bothersome to clean. I use these for drawing rather than writing and the quality is impeccable. They are on the more expensive side but nowhere else can I get such consistently fine lines. I like that they are refillable (the isographs so much more so than the rapidographs). For good consistent flow without having to clean them, these pens need to be used regularly. Weeks without using them can lead to splotchy lines or blocked pens.

### ⭐⭐⭐⭐⭐ Reliable. ink flow joy. Refillable and sustainable. Zero waste.
*by L***B on 21 September 2019*

This is a great pen. It draws smoothly and reliably. Takes India Ink which is waterproof and permanent. Way cheaper and sustainable to use a refillable pen than keep buying disposable pens. I bought a 250ml bottle of ink; way cheaper than the tiny ones. The steel nib will last forever. I use it most days. But if I leave it for a while, a good shake and the ink flows like a dream. I had been using cheaper brands, which were fine for a while, and then clogged and stopped working, even after extensive cleaning and faffing about. Grrr factor 10/10 after several months of use. As an artist and not a technical draughtsperson, I really rate these pens. Mine is a 0.6 nib. Can't vouch for the reliability of the finer nibs. However, it is too easy to over-tighten the grey nib holding section against the handle / barrel. Mine has a hairline crack, allowing the barrel to rotate a bit and be annoying. But it does not affect the drawing function, or ink flow, just the handling of the barrel. Still useable, but would like a better quality plastic at that point in the design. I have not been heavy handed with it. It was just a bit weak there on the thread. Having said which, it is far superior to the cheaper brands. I wasted money buying several cheapos, thinking I had simply bought a rogue pen initially. Not so. The working parts were just not as good as Rotring. Invest in the best.

### ⭐⭐⭐⭐⭐ Classic old school drawing pen
*by A***R on 10 July 2024*

(Doesn’t come with ink) This is the third one of these I’ve bought, in this fine size, so I can have one for white ink, one for black, plus a spare. Fine non splodgy line for crisp drawings. Prone to clogging but if you look after them they’ll last a long time.. Arrived well packaged in a nice box.

## Frequently Bought Together

- Rotring Isograph Technical Drawing Pen, 0.35 mm
- rOtring Isograph Technical Drawing Pen, Liquid Ink, 23 ml, Black
- Rotring Isograph Technical Pen, 0.25 mm

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-22*