---
product_id: 48187709
title: "PowerTank RT Black Pens - Bold 1.0mm, 12 Pack, Retractable, Smooth Writing, Office Supplies"
brand: "uni-ball"
price: "R1204"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Uni Ball"
url: https://www.desertcart.co.za/products/48187709-powertank-rt-black-pens-bold-1-0mm-12-pack-retractable
store_origin: ZA
region: South Africa
---

# Quick-drying, water-resistant ink 1.0mm bold tip for striking lines Rugged, durable design for extreme conditions PowerTank RT Black Pens - Bold 1.0mm, 12 Pack, Retractable, Smooth Writing, Office Supplies

**Brand:** uni-ball
**Price:** R1204
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write Bold. Write Fearless. Own Every Page.

## Quick Answers

- **What is this?** PowerTank RT Black Pens - Bold 1.0mm, 12 Pack, Retractable, Smooth Writing, Office Supplies by uni-ball
- **How much does it cost?** R1204 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/48187709-powertank-rt-black-pens-bold-1-0mm-12-pack-retractable)

## Best For

- uni-ball enthusiasts

## Why This Product

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

## Key Features

- • **Ink That Won't Quit:** Fast-drying, fade-resistant ink ensures your ideas stay sharp and secure—rain or shine.
- • **Built for the Hustle:** Rugged construction withstands outdoor, office, and on-the-go challenges without skipping a beat.
- • **Comfort Meets Control:** Textured grip designed for all-day writing comfort, empowering your productivity flow.
- • **Bold Precision, Every Time:** 1.0mm tip delivers confident, clear strokes that stand out in meetings and notes.
- • **Trusted Legacy, Modern Edge:** Uni-ball’s heritage of Japanese craftsmanship guarantees a premium writing experience that professionals swear by.

## Overview

The Uni-ball PowerTank RT Black Pen is a 1.0mm retractable ballpoint pen engineered for professionals who demand durability and precision. Featuring quick-drying, water-resistant ink that resists fading and fraud, it excels in extreme conditions with a rugged design and textured grip for comfortable, controlled writing. Available in a convenient 12-pack, it’s the ultimate tool for office, outdoor, and everyday use.

## Description

Step into a world of timeless elegance and unparalleled craftsmanship with Uniball, a brand that has woven its legacy into the fabric of fine writing instruments. With a heritage rooted in innovation and a commitment to excellence, Uniball has consistently delivered a writing experience that stands the test of time. Immerse yourself in the art of writing with Uniball's meticulously crafted pens, proudly made in Japan. Our legacy of precision and quality is evident in every stroke, ensuring that your thoughts flow seamlessly onto paper with each movement of the pen. From Gel Pens to Rollerball Pens, Ballpoint Pens to Fineliner Pens, and Mechanical Pencils, Uniball offers a comprehensive range that caters to every writing style and preference. Dive into a world of versatility with Uniball's diverse range of tip sizes, spanning from the ultra-micro 0.38 for intricate detailing, to the bold 1.0 for striking emphasis. Whether you're sketching, journaling, note-taking, or bringing ideas to life, Uniball empowers you to effortlessly transition between strokes, giving your writing a unique dimension that captivates the eye and stirs the soul. As you hold a Uniball pen in your hand, you're not just embracing a writing instrument – you're embracing a legacy of craftsmanship, innovation, and the pursuit of perfection. Each pen is a testament to our dedication to providing you with an unmatched writing experience, where every word is an ode to the art of communication. Start your story with Uniball, where heritage meets modernity, and each stroke is an invitation to immerse yourself in a world of boundless expression. Join a community of discerning individuals who appreciate the value of quality, heritage, and the power of the written word. Experience the magic of Uniball for yourself and discover the joy of writing that transcends time and leaves an indelible mark on every page.

Review: Nice pens - I really like these pens - nice ink, nice line, soft and smooth swich
Review: Thing of EDC Beauty. - Now, I'm a fanatic about my pens and recently I was investigating the space pen market for my EDC purposes... I wanted something that would write anywhere and everywhere. Personally I find the Space Pen refills to be overpriced and my normal, day to day, go to pen is the Uniball Signo Micro Fine in blue. It writes like a dream and gel is just awesome. So when I found out that Uniball made a similar pen to the Space Pen I had to give it a try... This pen writes on everything. Smooth and steady, I had it writing on pieces of flimsy, oily plastic. When I'm transferring designs over to brass plate, this writes on it with no difficulty OR smudges. No skips. No need to go back over what I'd written. Upside down and it just keeps on going. Nothing I've thrown at this has phased it. I'm tempted to stick one in the freezer and see how it operates after. This met all of my expectations... but one. The exterior isn't as functionally sleek as my beloved Uniball Signo RT. It's a little too bulky. The grip is too plasticky. And unfortunately the refill isn't designed to swap between the outer casings of the two pens. Uni ball, this pen is awesome but you missed the mark but not making it interchangeable with your Signo's.

## Features

- Fast-flowing and long-lasting ink - With its quick-drying, smooth ink, the Uni-ball Power Tank RT ballpoint pen is perfect for delivering precise lines in any situation. The ink also lasts long, giving you a reliable writing tool
- Durable and rugged design - The Power Tank RT is built to withstand tough conditions, making it great for outdoor use, extreme weather, and wet surfaces. Its rugged design ensures the pen will last
- Comfortable and controlled writing - The textured grip provides comfort and control, even in tough conditions, allowing you to write with ease. It's perfect for professionals and outdoor enthusiasts
- Superior protection - The uni Super Ink forms an indelible bond with paper, protecting against fading, water, and fraud. Your writing will stay put, whether you're composing a professional document or jotting notes outside
- Multiple Options - We offer bulk pens and colored pens so you're always covered whether you need black pens, red pens, or blue pens; as well as ballpoint pens, and rollerball pens for home supplies, office supplies, school supplies, or work supplies

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001B0B04S |
| Best Sellers Rank | 63,476 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 964 in Retractable Ballpoint Pens |
| Brand | uni-ball |
| Closure | Retractable |
| Colour | Black |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,092) |
| Date First Available | 19 Dec. 2008 |
| Grip Type | Textured |
| Ink Colour | Black |
| Item Weight | 109 g |
| Line Size | 1.00 Pen |
| Manufacturer | uni-ball Corporation |
| Manufacturer Part Number | 42070 |
| Material Type | Plastic |
| Model Number | 42070 |
| Number of Items | 12 |
| Pencil Lead Degree (Hardness) | HB |
| Point Type | Medium |
| Product Dimensions | 1.6 x 14.3 x 1.27 cm; 108.86 g |
| Shape | Round |
| Size | 1 count (Pack of 12) |

## Product Details

- **Age range (description):** Adult
- **Brand:** uni-ball
- **Colour:** Black
- **Ink colour:** Black
- **Material:** Plastic
- **Model name:** Power Tank
- **Point type:** Medium
- **Special feature:** Retractable
- **Unit count:** 12.0 Count
- **Writing instrument form:** Ballpoint Pen

## Images

![PowerTank RT Black Pens - Bold 1.0mm, 12 Pack, Retractable, Smooth Writing, Office Supplies - Image 1](https://m.media-amazon.com/images/I/715X2tKHd9L.jpg)

## Questions & Answers

**Q: I'm assuming this isn't a gel pen, rolling ball pen, or the smooth writing uniball signo pen?  I don't want it to smear.**
A: This is the greatest pen I have ever used. I started buying them when I did private security and had to write reports outside in the rain. This pen, the Power Tank, will write in sub-zero temps, upside down, and even under water. I have never had it smear on me. I sent some to my wife when she went through Army boot camp and she loves them also. When she deployed for a civil mission with the National Guard one winter when there was an ice storm, she had the only pen that would write in the sub zero temps... It is an INK pen, not gel and it is a ball point pen, but it is hands down the greatest pen I have ever used.

**Q: The barrel of the pen is clear, but is the plastic tube the ink itself is in clear? Want to see how much ink is remaining and most are solid plastic.**
A: Of all these pens that I have used, the ink level is visible in all of the barrels. It is a dark ink line in the middle of the barrel. The ink line becomes shorter as the pen is used and disappears when ink is used up.

**Q: Do these pens have a 0.7 or 1.0 point? Thanks!**
A: 1.0mm point. It writes a real nice (perfect for me) width line. It doesn't run out wide like a felt tip pen does. The thick gel stays put and the pressurized tank writes upside down and on demand, 1st time, every time. Only negatives are the short ink life and the extra barrel width.

**Q: Can it write well on carbon copy like checkbooks or forms that need to press through?**
A: It will definitely perform well on checkbooks that have to be pressed through. I don't have any carbons, but I'm sure that will work as well. We have used these pens for at least 8 or 10 years. My wife is a cross word nut and says she needs to be able to write over her. I like the pens for everyday stuff. They are made in Japan by Mitsubishi according to the box. Hope this helps.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice pens
*by B***A on 30 September 2018*

I really like these pens - nice ink, nice line, soft and smooth swich

### ⭐⭐⭐⭐⭐ Thing of EDC Beauty.
*by R***N on 21 August 2017*

Now, I'm a fanatic about my pens and recently I was investigating the space pen market for my EDC purposes... I wanted something that would write anywhere and everywhere. Personally I find the Space Pen refills to be overpriced and my normal, day to day, go to pen is the Uniball Signo Micro Fine in blue. It writes like a dream and gel is just awesome. So when I found out that Uniball made a similar pen to the Space Pen I had to give it a try... This pen writes on everything. Smooth and steady, I had it writing on pieces of flimsy, oily plastic. When I'm transferring designs over to brass plate, this writes on it with no difficulty OR smudges. No skips. No need to go back over what I'd written. Upside down and it just keeps on going. Nothing I've thrown at this has phased it. I'm tempted to stick one in the freezer and see how it operates after. This met all of my expectations... but one. The exterior isn't as functionally sleek as my beloved Uniball Signo RT. It's a little too bulky. The grip is too plasticky. And unfortunately the refill isn't designed to swap between the outer casings of the two pens. Uni ball, this pen is awesome but you missed the mark but not making it interchangeable with your Signo's.

### ⭐⭐⭐⭐⭐ best pens
*by T***Y on 2 June 2013*

I'm a Postman and need to use a pen against walls, in the rain, on wet paper and this pen does it all. You can buy refills but the pen itself wouldn't last a refill, the spring goes near the end but till then you'll wonder how you survived till now without one,

## Frequently Bought Together

- uniball Power Tank Rt Ballpoint Pen, Retractable, Bold 1 Mm, Black Ink, Smoke/black Barrel, Dozen
- Uni-ball Power Tank Ballpoint Retractable & Fine Ballpoint Pen Rubber Grip Type-0.7mm-black Ink-value Set of 5
- Uni-ball Power Tank Ballpoint Retractable & Fine Ballpoint Pen Rubber Grip Type-0.7mm-black Ink-value Set of 10

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**Shop now:** [https://www.desertcart.co.za/products/48187709-powertank-rt-black-pens-bold-1-0mm-12-pack-retractable](https://www.desertcart.co.za/products/48187709-powertank-rt-black-pens-bold-1-0mm-12-pack-retractable)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-19*