---
product_id: 256550066
title: "Mr. Pen - T Square, T Ruler, 18 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: "$53.82"
currency: USD
in_stock: true
category: "Mr. Pen"
url: https://www.desertcart.us/products/256550066-mr-pen-t-square-t-ruler-18-inch-metal-ruler
store_origin: US
region: United States of America
---

# 12-inch dual-scale precision Laser-etched accurate graduations High-impact carbon steel durability Mr. Pen - T Square, T Ruler, 18 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:** $53.82
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Mr. Pen - T Square, T Ruler, 18 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?** $53.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/256550066-mr-pen-t-square-t-ruler-18-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 Truler18 inch . 45 cm ruler 12in . 30cm graduated head Made from high impact carbon steel Black body with large white prints Precise laser printed inch and centimeter measurements Perfect for architects, engineers and artists Can be used as T square, L square, L ruler

## Features

- manufacturer: Mr. Pen
- Item Trademark: MR. PEN
- Item Category: Ruler

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F1XKFZX |
| Best Sellers Rank | #37,607 in Office Products ( See Top 100 in Office Products ) #205 in Rulers |
| Brand Name | Mr. Pen |
| Color | black |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,427) |
| Graduation Range | 1/16 Inches |
| Item Dimensions L x W | 45.7L x 45W centimeters |
| Manufacturer | Mr. Pen |
| Material Type | Carbon Steel, Metal |
| Model | TS18 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | TS18 |
| Style Name | Compact |
| UPC | 853126008272 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Mr. Pen
- **Colour:** black
- **Graduation range:** 1/16 Inches
- **Material:** Carbon Steel, Metal
- **Style:** Compact

## Images

![Mr. Pen - T Square, T Ruler, 18 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/31KbtxYsrcL.jpg)
![Mr. Pen - T Square, T Ruler, 18 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/51QAR5YIisL.jpg)
![Mr. Pen - T Square, T Ruler, 18 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/51CdLN4g8KL.jpg)
![Mr. Pen - T Square, T Ruler, 18 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/51-7dqJZt8L.jpg)
![Mr. Pen - T Square, T Ruler, 18 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/71d-W2ZI6ML.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

## 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 United States of America*
*Store origin: US*
*Last updated: 2026-10-12*