---
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: "₨387"
currency: SCR
in_stock: true
reviews_count: 5
category: "Mr. Pen"
url: https://www.desertcart.sc/products/256550066-mr-pen-t-square-t-ruler-12-inch-metal-ruler
store_origin: SC
region: Seychelles
---

# 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:** ₨387
**Availability:** ✅ In 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?** ₨387 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/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, this ruler withstands rigorous daily use without warping or fading.
- • **Multi-Functional Design:** Transforms effortlessly between T square, L square, and standard ruler to suit architects, engineers, and artists alike.
- • **Bold Contrast for Clarity:** Black body with large white laser-printed markings ensures easy readability in any lighting condition.
- • **Optimized for Tight Spaces:** Compact 8-inch calibrated T-head fits perfectly in tool pouches, ideal for detailed layouts like door and window jambs.
- • **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 functions as a T square, L square, and standard ruler, with a compact 8-inch calibrated T-head for versatile, precise layouts. Its bold black and white contrast ensures clear visibility, making it an essential tool for professional-grade drafting and design.

## 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: Mr. T ruler - As a beginner this tool was helpful to do my shirts. The size was perfect. I would recommend it.
Review: Perfect for layout of door jambs or window jambs - 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.

## 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 | Mr. Pen |
| Brand Name | Mr. Pen |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.6 out of 5 stars 3,424 Reviews |
| Graduation Range | 1/16 Inches |
| Graduation range | 1/16 Inches |
| Item Dimensions L x W | 30.5L x 20.3W centimeters |
| Item Weight | 1 Grams |
| Manufacturer | Mr. Pen |
| Material | Carbon Steel , Metal |
| Material Type | Carbon Steel, Metal |
| Model | TS12 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | TS12 |
| Product dimensions | 30.5L x 20.3W centimeters |
| Style | T,L Square,Square,T Square |
| Style Name | T,L Square,Square,T Square |
| UPC | 853126008265 |
| Unit Count | 1 Count |

## 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

### ⭐⭐⭐⭐⭐ Mr. T ruler
*by M***N on 18 July 2026*

As a beginner this tool was helpful to do my shirts. The size was perfect. I would recommend it.

### ⭐⭐⭐⭐⭐ Perfect for layout of door jambs or window jambs
*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.

### ⭐⭐⭐⭐⭐ Perfect of cards
*by F***T on 25 June 2022*

I purchased this T square to help my make my greetings cards as the one I had broke. Fast delivery and good quality. I would purchase this again if needed. Thank

## 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/256550066-mr-pen-t-square-t-ruler-12-inch-metal-ruler](https://www.desertcart.sc/products/256550066-mr-pen-t-square-t-ruler-12-inch-metal-ruler)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-09-17*