---
product_id: 2664585
title: "uniball Power Tank RT Ballpoint Pens, Medium Point (1.0mm), Black, 12 Pack"
brand: "uni-ball"
price: "$U2392"
currency: UYU
in_stock: true
reviews_count: 13
category: "Uni Ball"
url: https://www.desertcart.uy/products/2664585-uniball-power-tank-rt-ballpoint-pens-medium-point-1-0mm
store_origin: UY
region: Uruguay
---

# Pressurized ink works in cold, wet & odd angles 1.0mm medium tip for bold, clear writing Uni Super Ink resists water, fading & fraud uniball Power Tank RT Ballpoint Pens, Medium Point (1.0mm), Black, 12 Pack

**Brand:** uni-ball
**Price:** $U2392
**Availability:** ✅ In Stock

## Summary

> 🖋️ Power through every line—because your ideas deserve unstoppable ink.

## Quick Answers

- **What is this?** uniball Power Tank RT Ballpoint Pens, Medium Point (1.0mm), Black, 12 Pack by uni-ball
- **How much does it cost?** $U2392 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/2664585-uniball-power-tank-rt-ballpoint-pens-medium-point-1-0mm)

## 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

- • **All-Weather Warrior:** Pressurized ink cartridge ensures flawless writing upside down, in rain, or freezing temps—never miss a beat.
- • **Comfort Meets Control:** Textured rubber grip designed for extended use, even in harsh conditions, keeps your hand steady and fatigue-free.
- • **Refillable & Reliable:** Sustainable retractable design with long-lasting ink means you’re always ready to write, no cap fuss.
- • **Secure Your Signature:** Indelible uni Super Ink locks in your words with water, fade, and fraud resistance for trusted documents.
- • **Write Bold, Write Smooth:** 1.0mm medium point delivers crisp, readable strokes that stand out in any document.

## Overview

The Uni-Ball Power Tank RT Ballpoint Pen features a 1.0mm medium tip with a pressurized ink cartridge that writes smoothly in extreme conditions—including upside down, wet, or cold environments. Its indelible uni Super Ink resists water, fading, and fraud, making it ideal for secure, professional documents. The pen’s textured rubber grip enhances comfort during long writing sessions, and its retractable, refillable design ensures durability and convenience for everyday use.

## Description

Write effectively in the toughest conditions with Power Tank Retractable Ballpoint Pens from uniball featuring a 1.0mm medium point. Designed to perform optimally in extreme conditions, the pens feature a pressurized ink cartridge that offers fast and clean writing even on damp surfaces, in bitterly cold conditions or at unusual angles, including upside down. The refillable ballpoint pens come with a textured rubber grip that encourages greater writing comfort. uni Super Inkâ„¢ has pigmented particles that create an indelible bond with the paper, helping you create fraud, fade and water resistant documents even in harsh environments. The 1.0mm medium point offers bold strokes with a rich color payoff for clear writing. When you need a rugged writing tool, this refillable ballpoint click pen is the best choice in any hemisphere.

Review: Great pens. - The only pens I’ll use are Uniball. My fav the gel 207 impact is phenomenal, but this time around I decided to try a ball point. First thing I noticed was these aren’t as wide and bold as the 207 impact. They call it 1.0mm, but side by side you can clearly see this line isn’t as wide. I’d call it .7mm. What I do love is they are SMOOTH. They also will write on nearly anything and no smudges. The one thing I don’t like about gel. This ink dries as soon as you lay it down. The grip and feel is exactly what you’d expect from uniball. I’m also a fan of click on and off which these are vs pens with caps.
Review: I agree - best pen ever!!! - I have been self-employed, working out of my home office, for over 25 years. So I have to provide my own office supplies with no employer to buy them for me. I go through a lot of pens in my work. I've tried about 25-30 different pens over that time and none have come close to the performance of these pens. Flawless performance - write first time, every time. No drying up, they write on almost anything, and they can even write vertically like on a list posted on a board or fridge without having to take the list down and put it on a dry, horizontal surface to write on it, like you have to do with all other pens I've tried. They are hard to find; even office supply stores don't carry them anymore. I can only find them here on desertcart. They're expensive, but worth it! They're expensive compared to regular pens that don't write inverted. But compared to other pens that write inverted, plus they add features worthless to me like able to write in space or underwater, these are far cheaper. I feel like I should hoard a bunch of them since it seems all the best products get discontinued. But even the ink in these great pens will eventually dry out, so it's not a good idea to stockpile them. All inks, dyes, paints, etc. have a limited useable life span. Just have to hope that I can continue to find them here.

## Features

- Pressurized ink cartridge works at odd angles and in cold weather or wet conditions
- Indelible hybrid ink blends the smoothness and vibrancy of a gel pen with the fast drying speed of a ballpoint
- 1.0mm pens feature a medium tip that delivers outstanding readability
- Refillable ballpoint pens have uni Super Ink that protects against water, fading and fraud
- These ballpoint pens have a textured rubber grip for work in harsh weather

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001B0B04S |
| Best Sellers Rank | #28,146 in Office Products ( See Top 100 in Office Products ) #666 in Ballpoint Pens |
| Brand | Uni-Ball |
| Closure | Retractable |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,056) |
| Date First Available | January 14, 2006 |
| Grip Type | Ribbed |
| Ink Color | Black |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.84 ounces |
| Item model number | 42070 |
| Line Size | 1.0 mm |
| Manufacturer | Uni-Ball |
| Manufacturer Part Number | 42070 |
| Material Type | Plastic |
| National Stock Number | 7520-00-935-7136 |
| Number of Items | 12 |
| Pencil Lead Degree (Hardness) | HB |
| Point Type | Bold |
| Product Dimensions | 0.63 x 5.63 x 0.5 inches |
| Shape | Round |
| Size | 1 Count (Pack of 12) |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Uni-Ball
- **Color:** Black
- **Ink Color:** Black
- **Writing Instrument Form:** Ballpoint Pen

## Images

![uniball Power Tank RT Ballpoint Pens, Medium Point (1.0mm), Black, 12 Pack - 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

### ⭐⭐⭐⭐⭐ Great pens.
*by W***I on October 2, 2025*

The only pens I’ll use are Uniball. My fav the gel 207 impact is phenomenal, but this time around I decided to try a ball point. First thing I noticed was these aren’t as wide and bold as the 207 impact. They call it 1.0mm, but side by side you can clearly see this line isn’t as wide. I’d call it .7mm. What I do love is they are SMOOTH. They also will write on nearly anything and no smudges. The one thing I don’t like about gel. This ink dries as soon as you lay it down. The grip and feel is exactly what you’d expect from uniball. I’m also a fan of click on and off which these are vs pens with caps.

### ⭐⭐⭐⭐⭐ I agree - best pen ever!!!
*by A***D on August 30, 2018*

I have been self-employed, working out of my home office, for over 25 years. So I have to provide my own office supplies with no employer to buy them for me. I go through a lot of pens in my work. I've tried about 25-30 different pens over that time and none have come close to the performance of these pens. Flawless performance - write first time, every time. No drying up, they write on almost anything, and they can even write vertically like on a list posted on a board or fridge without having to take the list down and put it on a dry, horizontal surface to write on it, like you have to do with all other pens I've tried. They are hard to find; even office supply stores don't carry them anymore. I can only find them here on Amazon. They're expensive, but worth it! They're expensive compared to regular pens that don't write inverted. But compared to other pens that write inverted, plus they add features worthless to me like able to write in space or underwater, these are far cheaper. I feel like I should hoard a bunch of them since it seems all the best products get discontinued. But even the ink in these great pens will eventually dry out, so it's not a good idea to stockpile them. All inks, dyes, paints, etc. have a limited useable life span. Just have to hope that I can continue to find them here.

### ⭐⭐⭐⭐⭐ Ink doesn't skip or smear.
*by J***1 on January 25, 2025*

The Uniball PowerTansmearing. .he best ballpoint pen on the market. The pen writes on most surfaces without skipping or smearing. The ink is dark and resistant to water, alcohol and acetone. The Power Tank is perfect for lab workers, medical personnel ie Paramedics,Nurses, Law Enforcement and any other profession that needs a dependable ballpoint pen. The pen comes in 7mm or 1mm point.

## 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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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-15*