---
product_id: 256550066
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: "1063289₫"
currency: VND
in_stock: false
reviews_count: 5
category: "Mr. Pen"
url: https://www.desertcart.vn/products/256550066-mr-pen-t-square-t-ruler-12-inch-metal-ruler
store_origin: VN
region: Vietnam
---

# 12-inch dual-scale precision Laser-etched accurate graduations High-impact carbon steel durability 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:** 1063289₫
**Availability:** ❌ Out of Stock

## Summary

> 📐 Elevate your precision game — because every line counts!

## 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?** 1063289₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/256550066-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

- • **Built to Last:** Crafted from high-impact carbon steel, ensuring your ruler withstands the rigors of any project.
- • **Compact & Portable:** Sleek 12-inch size with an 8-inch calibrated T-head fits perfectly in your toolkit or pouch for on-the-go accuracy.
- • **Bold & Clear Visibility:** Black matte finish with large white laser-etched markings for effortless reading in any lighting.
- • **Multi-Functional Design:** Transforms seamlessly between T square, L square, and scale ruler to fit all your drafting needs.
- • **Precision Meets Versatility:** Dual-sided inch & cm scales with 1/16" and 1mm graduations for flawless measurements every time.

## Overview

The Mr. Pen 12-inch T Square ruler is a premium drafting tool made from durable carbon steel, featuring laser-etched dual-scale measurements in inches and centimeters. Designed for architects, engineers, and artists, it offers versatile use as a T square, L square, and scale ruler, combining portability with professional-grade accuracy.

## Description

Mr. Pen – Truler is designed to equip architects, draftsmen, engineers and artists with the right tool for various projects.The package includes:1 T-ruler:12 inch / 30 cm ruler8 in / 20cm graduated headMade from high impact carbon steelBlack body with large white printsPrecise laser printed inch and centimeter measurementsPerfect for architects, engineers and artistsCan be used as T square, L square, L ruler

Review: I love this square because it’s small enough to fit on my pouch hook and it’s great for tight layout of door jambs and window jambs. Recommend for all trades men doing floor layouts.
Review: 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.

## 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 |
| Brand Name | Mr. Pen |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,399) |
| Graduation Range | 1/16 Inches |
| Item Dimensions L x W | 30.5L x 20.3W centimeters |
| Item Weight | 1 Grams |
| Manufacturer | Mr. Pen |
| Material Type | Carbon Steel, Metal |
| Model | TS12 |
| Part Number | TS12 |
| Style Name | T,L Square,Square,T Square |
| UPC | 853126008265 |

## Product Details

- **Brand:** Mr. Pen
- **Colour:** Black
- **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

### ⭐⭐⭐⭐⭐ Review
*by R***B on 1 December 2024*

I love this square because it’s small enough to fit on my pouch hook and it’s great for tight layout of door jambs and window jambs. Recommend for all trades men doing floor layouts.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 8 January 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.

### ⭐⭐⭐⭐ Review
*by S***3 on 2 January 2024*

Description says 1mm increments. It's 2mm increments which is unusual & hard to adjust to when trying to work fast. If you want advice on making a better ruler do this => Count in Centimeters W/1millimeter increments for the etchings.

## 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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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-04-25*