---
product_id: 228805020
title: "Isomars Technoart Fineliner Technical Drawing Pen 0.3mm with Black Waterproof Drawing Ink Set | Refillable Precision Pen for Sketching, Drafting, Architecture & Mandala Art"
brand: "isomars"
price: "€ 7.89"
currency: EUR
in_stock: true
reviews_count: 5
category: "Isomars"
url: https://www.desertcart.pt/products/228805020-isomars-technoart-fineliner-technical-drawing-pen-0-3mm-with-black
store_origin: PT
region: Portugal
---

# Waterproof & fade-resistant ink 0.3mm ultra-fine precision nib Refillable & eco-friendly design Isomars Technoart Fineliner Technical Drawing Pen 0.3mm with Black Waterproof Drawing Ink Set | Refillable Precision Pen for Sketching, Drafting, Architecture & Mandala Art

**Brand:** isomars
**Price:** € 7.89
**Availability:** ✅ In Stock

## Summary

> ✏️ Draw with precision, create with confidence—never miss a line!

## Quick Answers

- **What is this?** Isomars Technoart Fineliner Technical Drawing Pen 0.3mm with Black Waterproof Drawing Ink Set | Refillable Precision Pen for Sketching, Drafting, Architecture & Mandala Art by isomars
- **How much does it cost?** € 7.89 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/228805020-isomars-technoart-fineliner-technical-drawing-pen-0-3mm-with-black)

## Best For

- isomars enthusiasts

## Why This Product

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

## Key Features

- • **Template-Ready Design:** Extended metal tip glides smoothly under rulers and stencils for perfect architectural and engineering accuracy.
- • **Sustainable Creativity:** Refillable ink system means less waste and more long-term value—create boldly, sustainably.
- • **Effortless Control & Comfort:** Ergonomic, lightweight body reduces hand fatigue during marathon sketching or drafting sessions.
- • **Pinpoint Precision Every Time:** 0.3mm metal tip delivers razor-sharp, consistent lines for flawless technical and artistic work.
- • **Smudge-Proof Masterpiece Maker:** Waterproof, quick-dry ink ensures your creations stay crisp and vibrant—no smears, no fades.

## Overview

The Isomars Technoart Fineliner 0.3mm is a professional-grade technical drawing pen featuring a fine metal tip for ultra-precise lines, waterproof and fade-resistant black ink for lasting artwork, and a refillable design for sustainable use. Ergonomically crafted for comfort, it’s ideal for architects, artists, engineers, and designers seeking flawless detail and smooth ink flow in every stroke.

## Description

The Isomars Technoart Fineliner Technical Drawing Pen 0.3mm with Black Waterproof Ink Set is a professional-grade precision drawing tool designed for artists, architects, engineers and designers who demand accuracy and smooth performance. Featuring a durable fine metal tip, the pen produces sharp, clean and consistent lines, making it ideal for technical drawings, drafting, sketching, illustration, mandala art, comic art, line art and detailed creative work. The long metal nib is specially designed for effortless use with rulers, templates and stencils, ensuring superior control and precision. The included waterproof black drawing ink delivers rich pigmentation with quick-drying, smudge-resistant and fade-resistant performance for long-lasting results. Its refillable design ensures extended usability while reducing waste. Lightweight and ergonomically designed, the pen offers a comfortable grip for extended drawing sessions without fatigue. Whether used by professionals, students or hobby artists, this technical pen set is a reliable tool for precision artwork and drafting applications.

Review: good artistic pen - the product is good and meet the standards for every artist.
Review: average product - one time use product. if you used it and kept it aside for some time, re-using it will be tough. i tried multiple times but never worked. ink doesn't flow freely. really need to shake it multiple times for usage. it is frustrating.

## Features

- PRECISION 0.3mm NIB: Designed for accurate and consistent line work, ideal for technical drawing, detailing, outlining, hatching, stippling, drafting and fine illustrations.
- SMOOTH & CONTROLLED INK FLOW: Premium fineliner pen delivers clean, uninterrupted ink flow with no skipping or blotting, ensuring crisp professional-quality results.
- WATERPROOF & FADE-RESISTANT INK: Comes with rich black waterproof drawing ink that dries quickly, resists smudging and remains permanent on paper for long-lasting artwork.
- LONG METAL TIP FOR TEMPLATE WORK: Extended metal tip allows easy use with rulers, stencils and drawing templates, making it perfect for engineering, architecture and design applications.
- REFILLABLE & DURABLE DESIGN: Reusable technical pen with refillable ink system for extended performance and economical long-term use.
- ERGONOMIC LIGHTWEIGHT BODY: Comfortable grip and balanced design reduce hand fatigue during long drawing, sketching or drafting sessions.
- IDEAL FOR MULTIPLE APPLICATIONS: Suitable for architects, engineers, artists, fashion designers, illustrators, comic artists, students and hobbyists.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0194DHU42 |
| Best Sellers Rank | #29,722 in Office Products ( See Top 100 in Office Products ) #7,681 in Pens, Pencils & Writing Supplies |
| Body Shape | Round |
| Brand | Isomars |
| Brand Name | Isomars |
| Colour | Black |
| Customer Reviews | 3.7 out of 5 stars 41 Reviews |
| Grip Type | Contoured |
| Hand Orientation | Ambidextrous |
| Ink Base | Water |
| Ink Colour | Black,red |
| Is Waterproof | true |
| Item Diameter | 0.3 Millimetres |
| Item Dimensions | 12 x 0.6 x 12 Centimeters |
| Item Type | Technical Drawing pen and Ink Combo |
| Item Weight | 10 Grams |
| Line Size | 0.3 Millimeters |
| Manufacturer | Y S International |
| Manufacturer Part Number | TTP1100_0.3 |
| Marker Type | Permanent Marker |
| Material Type | Metal,vellum |
| Model number | TTP1100_0.3 |
| Number Of Items | 1 |
| Number of Items | 1 |
| Number of Pieces | 25 |
| Packer Contact Information | YS INTERNATIONAL |
| Pattern | Letter Print |
| Point Type | Fine |
| Recommended Uses For Product | Drawing |
| Special Features | Waterproof |
| Style Name | Chisel |
| Surface Recommendation | Metal |
| Target Audience | Adult, Kid |
| Unit Count | 1.0 Count |
| Water Resistance Level | Waterproof |
| Writing Instrument Form | Technical Pen |

## Product Details

- **Brand:** Isomars
- **Ink Colour:** Black,red
- **Number of Items:** 1
- **Point Type:** Fine
- **Recommended Uses For Product:** Drawing

## Images

![Isomars Technoart Fineliner Technical Drawing Pen 0.3mm with Black Waterproof Drawing Ink Set | Refillable Precision Pen for Sketching, Drafting, Architecture & Mandala Art - Image 1](https://m.media-amazon.com/images/I/716bEFTku8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ good artistic pen
*by P***R on 28 March 2021*

the product is good and meet the standards for every artist.

### ⭐⭐⭐ average product
*by S***H on 17 March 2021*

one time use product. if you used it and kept it aside for some time, re-using it will be tough. i tried multiple times but never worked. ink doesn't flow freely. really need to shake it multiple times for usage. it is frustrating.

### ⭐⭐ Too delicate to handle.
*by N***U on 20 September 2023*

I have ordered 0.3mm thickness pen and while using the pen nib is so delicate as it started to bend even at its slightest pressure. So, I recommend some other brands who is looking for fine liners drawing pens.

## Frequently Bought Together

- Isomars Fineliner Technical Drawing Pen 0.3&Ink Combo Set,Black
- Isomars Fineliner Technical Drawing Pen 0.2&Ink Combo Set,Black
- Isomars Fineliner Technical Drawing Pen 0.5 and Ink Combo Set

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**Shop now:** [https://www.desertcart.pt/products/228805020-isomars-technoart-fineliner-technical-drawing-pen-0-3mm-with-black](https://www.desertcart.pt/products/228805020-isomars-technoart-fineliner-technical-drawing-pen-0-3mm-with-black)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-07*