---
product_id: 88733911
title: "Mr. Pen - T Square, T Ruler, 12 inch Metal Ruler, T Square Ruler, Drafting Tools, Architect Ruler, Set Square, Drafting Ruler, Tsquare, Truler, Architectural Triangle, Tee Ruler, L Square, Scale Ruler"
brand: "mr. pen"
price: "₨551"
currency: SCR
in_stock: true
reviews_count: 13
category: "Mr. Pen"
url: https://www.desertcart.sc/products/88733911-mr-pen-t-square-t-ruler-12-inch-metal-ruler
store_origin: SC
region: Seychelles
---

# 12-inch precision scale Dual-sided laser-etched accuracy High-impact carbon steel build Mr. Pen - T Square, T Ruler, 12 inch Metal Ruler, T Square Ruler, Drafting Tools, Architect Ruler, Set Square, Drafting Ruler, Tsquare, Truler, Architectural Triangle, Tee Ruler, L Square, Scale Ruler

**Brand:** mr. pen
**Price:** ₨551
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your drafts—measure like a pro, design like a visionary!

## Quick Answers

- **What is this?** Mr. Pen - T Square, T Ruler, 12 inch Metal Ruler, T Square Ruler, Drafting Tools, Architect Ruler, Set Square, Drafting Ruler, Tsquare, Truler, Architectural Triangle, Tee Ruler, L Square, Scale Ruler by mr. pen
- **How much does it cost?** ₨551 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/88733911-mr-pen-t-square-t-ruler-12-inch-metal-ruler)

## Best For

- mr. pen enthusiasts

## Why This Product

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

## Key Features

- • **Bold Black Finish:** Sleek black coating resists dirt and enhances visibility, keeping your workspace sharp and professional.
- • **Compact Yet Commanding:** 12-inch length with an 8-inch calibrated T-head for precise alignment and effortless drafting.
- • **Multi-Functional Design:** Use as a T square, L square, or scale ruler—perfect for architects, engineers, and artists.
- • **Dual-Sided Laser Etching:** Accurate inch (1/16th) and centimeter (1mm) graduations on both sides for versatile measuring.
- • **Precision Meets Durability:** Crafted from high-impact carbon steel for long-lasting use without warping or wear.

## Overview

The Mr. Pen 12-inch T Square is a premium drafting tool made from durable carbon steel, featuring dual-sided laser-etched measurements in both inches and centimeters. Its versatile design functions as a T square, L square, and scale ruler, making it an essential instrument for architects, engineers, and artists who demand precision and style in their work.

## Description

Buy Mr. Pen - T Square, T Ruler, 12 inch Metal Ruler, T Square Ruler, Drafting Tools, Architect Ruler, Set Square, Drafting Ruler, Tsquare, Truler, Architectural Triangle, Tee Ruler, L Square, Scale Ruler: Drafting Tools & Kits - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Well made and useful - Love the T Square. It is very useful for lining up my leather and getting the cut where I want it. Also, seems very well built. I will buy again from Mr. Pen.
Review: Perfecttttt - So perfect for my architecture class it’s really thick and actually could be dangerous make sure it doesn’t fall on your toes 😭 It’s definitely value your money and easy to read I use it everytime I have a project since I’ve got it! I love it You can see it a little bit on the sides of all my pictures lolll I also love the fact that it’s black so it won’t get dirty

## Features

- Black T ruler (12in), perfect for architects, engineers and artists
- Made from high impact carbon steel for durability
- T-ruler is largely and accurately laser printed on both sides. Inch and centimeter measurements (graduated in 16th of inch and 1mm)
- Can be used as T square, L square, L ruler
- 8inch/20cm calibrated t head

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F1ZFV69 |
| Best Sellers Rank | #18,579 in Office Products ( See Top 100 in Office Products ) #64 in Drafting Tools & Drafting Kits |
| Date First Available | June 27, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.035 ounces |
| Item model number | TS12 |
| Manufacturer | Mr. Pen |
| Product Dimensions | 12 x 8 x 0.04 inches |

## Product Details

- **Brand:** Mr. Pen
- **Color:** black, white
- **Graduation Range:** 1/16 Inches
- **Material:** Carbon Steel, Metal
- **Style:** T,L Square,Square,T Square

## Images

![Mr. Pen - T Square, T Ruler, 12 inch Metal Ruler, T Square Ruler, Drafting Tools, Architect Ruler, Set Square, Drafting Ruler, Tsquare, Truler, Architectural Triangle, Tee Ruler, L Square, Scale Ruler - Image 1](https://m.media-amazon.com/images/I/71btiJgn1xL.jpg)
![Mr. Pen - T Square, T Ruler, 12 inch Metal Ruler, T Square Ruler, Drafting Tools, Architect Ruler, Set Square, Drafting Ruler, Tsquare, Truler, Architectural Triangle, Tee Ruler, L Square, Scale Ruler - Image 2](https://m.media-amazon.com/images/I/71GOJZrmj0L.jpg)
![Mr. Pen - T Square, T Ruler, 12 inch Metal Ruler, T Square Ruler, Drafting Tools, Architect Ruler, Set Square, Drafting Ruler, Tsquare, Truler, Architectural Triangle, Tee Ruler, L Square, Scale Ruler - Image 3](https://m.media-amazon.com/images/I/71fYTp1Ix7L.jpg)
![Mr. Pen - T Square, T Ruler, 12 inch Metal Ruler, T Square Ruler, Drafting Tools, Architect Ruler, Set Square, Drafting Ruler, Tsquare, Truler, Architectural Triangle, Tee Ruler, L Square, Scale Ruler - Image 4](https://m.media-amazon.com/images/I/714C1VzmVhL.jpg)
![Mr. Pen - T Square, T Ruler, 12 inch Metal Ruler, T Square Ruler, Drafting Tools, Architect Ruler, Set Square, Drafting Ruler, Tsquare, Truler, Architectural Triangle, Tee Ruler, L Square, Scale Ruler - Image 5](https://m.media-amazon.com/images/I/91MBLI5F66L.jpg)

## Available Options

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

## Questions & Answers

**Q: Can this be used in making precision markings or is it more for rough cut applications?**
A: I do not feel this is to be considered a precision instrument.  There are small bulges (drips), of paint along various edges that prevent one from being able to accurately draw straight lines or check an item for “square”.

**Q: How thick is this ruler?**
A: The Mr. Pen ruler is about 1/16" inch thick and is made of a good quality metal.  The metal is hard to bend and I personally like it.

**Q: Will this work at a Tshirt vinyl ruler?**
A: I'm not sure I understand your question.

**Q: Is this ruler 1.5" wide?**
A: The top portion is about 1.25 (the "top of the T") the longer part is 1.75" wide. Hope this helps

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well made and useful
*by A***R on January 8, 2026*

Love the T Square. It is very useful for lining up my leather and getting the cut where I want it. Also, seems very well built. I will buy again from Mr. Pen.

### ⭐⭐⭐⭐⭐ Perfecttttt
*by A***. on December 1, 2025*

So perfect for my architecture class it’s really thick and actually could be dangerous make sure it doesn’t fall on your toes 😭 It’s definitely value your money and easy to read I use it everytime I have a project since I’ve got it! I love it You can see it a little bit on the sides of all my pictures lolll I also love the fact that it’s black so it won’t get dirty

### ⭐⭐⭐⭐⭐ Excellent quality!
*by S***M on November 29, 2025*

This is a wonderful, weighty ruler. I appreciate one side having inches and the other side has centimeters. It arrives in a fitted plastic sleeve for storage. Accurate when compared to another ruler. Excellent quality.

## Frequently Bought Together

- Mr. Pen - T Square, T Ruler, 12 inch Metal Ruler, T Square Ruler, Drafting Tools, Architect Ruler, Set Square, Drafting Ruler, Tsquare, Truler, Architectural Triangle, Tee Ruler, L Square, Scale Ruler
- Mr. Pen- Carpenter Square, Framing Square, 8 inch x 12 inch , Carpenters Square , Right Angle Ruler, Framing Tools, L Shape Ruler, Metal Square, Steel Square
- anezus Self Healing Sewing Mat, 12inch x 18inch Rotary Cutting Mat Double Sided 5-Ply Craft Cutting Board for Sewing Crafts Hobby Fabric Precision Scrapbooking Project

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**Shop now:** [https://www.desertcart.sc/products/88733911-mr-pen-t-square-t-ruler-12-inch-metal-ruler](https://www.desertcart.sc/products/88733911-mr-pen-t-square-t-ruler-12-inch-metal-ruler)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-18*