---
product_id: 397184552
title: "12 Inch Triangular Engineer Scale Ruler, Anodized Solid Aluminum Core with Laser Etched Scales, Imperial Scale 1:10, 1:20, 1:30, 1:40, 1:50, 1:60, Ideal for Civil Engineering Drafting Black"
brand: "intoy"
price: "$50.25"
currency: USD
in_stock: true
reviews_count: 5
category: "Intoy"
url: https://www.desertcart.us/products/397184552-12-inch-triangular-engineer-scale-ruler-anodized-solid-aluminum-core
store_origin: US
region: United States of America
---

# 6 precise imperial scales laser-etched never-fade markings anodized aluminum core 12 Inch Triangular Engineer Scale Ruler, Anodized Solid Aluminum Core with Laser Etched Scales, Imperial Scale 1:10, 1:20, 1:30, 1:40, 1:50, 1:60, Ideal for Civil Engineering Drafting Black

**Brand:** intoy
**Price:** $50.25
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your drafting game with precision that lasts a lifetime!

## Quick Answers

- **What is this?** 12 Inch Triangular Engineer Scale Ruler, Anodized Solid Aluminum Core with Laser Etched Scales, Imperial Scale 1:10, 1:20, 1:30, 1:40, 1:50, 1:60, Ideal for Civil Engineering Drafting Black by intoy
- **How much does it cost?** $50.25 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/397184552-12-inch-triangular-engineer-scale-ruler-anodized-solid-aluminum-core)

## Best For

- intoy enthusiasts

## Why This Product

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

## Key Features

- • **Smudge-Free Drafting:** Concave edges reduce pencil smearing, keeping your blueprints crisp and clean.
- • **Precision Meets Durability:** Laser-etched scales ensure permanent, fade-proof measurements for flawless accuracy every time.
- • **Confidence in Every Project:** Backed by a 100% worry-free warranty—because your precision tools should never let you down.
- • **Versatile Triangular Design:** Three-sided ruler with six imperial scales (1:10 to 1:60) tailored for architects, engineers, and students.
- • **Engineered for Professionals:** Solid anodized aluminum body offers lightweight strength and a premium grip for all-day drafting comfort.

## Overview

The Intoy 12 Inch Triangular Engineer Scale Ruler features a robust anodized aluminum core with laser-etched, fade-resistant imperial scales (1:10 to 1:60) across three sides. Designed for architects, engineers, and students, its ergonomic triangular shape ensures precise measurements, smudge-free drafting, and long-lasting durability—all backed by a worry-free warranty.

## Description

Intoy 12 Inches Engineering Scale RulerWith 3 Features Improved and new manufacturing process applied, Our Intoy Triangular Scale is the perfect tool for any architect, draftsman, engineer, or studentLaser Engraving(Laser etched) Techniques Applied. Reliable Scale Never Fade We improve the scale print technology. Instead of "print the scale on the ruler body", we use laser engraving(Laser-etched)which makes the scale marks never fade under any regular use. The scale etched permanently on the aluminum body surface. You won't worry about the inches fade any more.Solid Aluminum Triangular Body. Anodic Oxidation Black Color Surface Constructed of high-grade anodized aluminum this ruler provides a lightweight and durable feel making it easy to use for any project. What's more, this allows the ruler to lay flat on the drawing surface for precise and accurate placement. The concave design feature helps reduce smearing for clean pencil lines.Quality,Precision and Legible Scale Every design deserves the quality, precision and Legible Scale that the Intoy Triangular Architect Scale can provide. 3 Sides With 6 Different Scales Imperial Scale: 1:10, 1:20, 1:30, 1:40, 1:50, 1:60. Ideal for Blueprint, Professional Applications, Architecture,Civil Engineering, Drafting and Technical Illustration.Just Use For your Next Project Best Triangular Scale ever with our new techniques process. You deserves the best one. This is exactly what you are looking for. BUY the new Laser Engraving Scale Ruler for your next project.

Review: The construction and clarity of the engineering ruler are excellent. The material is sturdy and represent a return to high quality. It is rare to find a metal rulers since most are now made of plastic. The ruler sturdy is but remains lightweight.
Review: This tri ruler is something I couldn’t design without. I have issues with my eyes for various reasons and having a black background and white or bright fluorescent texts is so much easier to read rather than white background and black or dark texts colours so this ruler really is perfect for me and well made. I also use magnifiers to help with detailed measurements and I was able to see the sharp details of the etched in numbers and lines on each face of the ruler. Most of my design tools are Alvin products because of the quality but also their products just seem to work well with how I think. Well designed and well built design tools. I will no doubt purchase more Alvin products in the future.

## Features

- Never Fade Scales: Laser etched and Black Anodized (the anodic oxidation techniques),the scales is bold and legible, NEVER fade or Rub Off
- High Quality: Made from high grade anodized aluminum and well-machined. Durable to use and a good grip in hand. Triangular Body Design for Safer Cutting and Scoring of Materials
- Precise Scale: Professional grade for supreme accuracy. Reliable for Engineers and students Drafting their blueprints, designs or drafts
- Imperial Scale: 3 sides with 6 scales - 1:10, 1:20, 1:30, 1:40, 1:50, 1:60. Ideal for Blueprint, Professional Applications, Architecture,Civil Engineering, Drafting and Technical Illustration
- 100% Worry-free Warranty: Reliable construction and accurate performance. Ideal for any architect, draftsman, engineer, or student. If you are unhappy with your purchase, please feel free to ask a full refund.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FDX9T6S |
| Brand | Intoy |
| Color | Black |
| Customer Reviews | 4.8 4.8 out of 5 stars (893) |
| Date First Available | 31 July 2018 |
| Item Weight | 99 g |
| Manufacturer | YongKang HuaShen |
| Manufacturer Part Number | E-01 |
| Material Type | Aluminum |
| Model number | SRE01 |
| Product Dimensions | 32 x 2.59 x 2.59 cm; 99.22 g |

## Product Details

- **Brand:** Intoy
- **Colour:** Black
- **Material:** Aluminum
- **Style:** Drafting Tools
- **UPC:** 602860769587

## Images

![12 Inch Triangular Engineer Scale Ruler, Anodized Solid Aluminum Core with Laser Etched Scales, Imperial Scale 1:10, 1:20, 1:30, 1:40, 1:50, 1:60, Ideal for Civil Engineering Drafting Black - Image 1](https://m.media-amazon.com/images/I/81akp8ODxVL.jpg)

## Questions & Answers

**Q: We’re is this manufactured**
A: This is so well made, it can't be from this planet or even this dimension. Seriously, does it matter where it's made? As long as it's not radioactive who cares. It's very well made and highly accurate. I have 2 of these in 12" and 1 in  6".

**Q: Is there a Metric version?**
A: There is no a  Metric version in our brand right now. Very few engineer scale ruler has a Metric version.
thank you for your question.  We will research  if there is many customer looking for a Metric version engineer ruler.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by G***N on 18 April 2024*

The construction and clarity of the engineering ruler are excellent. The material is sturdy and represent a return to high quality. It is rare to find a metal rulers since most are now made of plastic. The ruler sturdy is but remains lightweight.

### ⭐⭐⭐⭐⭐ Review
*by V***A on 7 September 2022*

This tri ruler is something I couldn’t design without. I have issues with my eyes for various reasons and having a black background and white or bright fluorescent texts is so much easier to read rather than white background and black or dark texts colours so this ruler really is perfect for me and well made. I also use magnifiers to help with detailed measurements and I was able to see the sharp details of the etched in numbers and lines on each face of the ruler. Most of my design tools are Alvin products because of the quality but also their products just seem to work well with how I think. Well designed and well built design tools. I will no doubt purchase more Alvin products in the future.

### ⭐⭐⭐⭐⭐ Review
*by G***I on 10 February 2026*

Good. I am using it for school work since I got it. I like this metal material better than plastic ones

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-19*