---
product_id: 256550075
title: "3 Pc Large Triangular Ruler Set, Triangular Scale, 11\" 30/60 and 8\" 45/90 Triangles, Architectural Scale Ruler, Architect Triangular Scale, Set Squares, Geometry Ruler, BluePrint Scale Rulers"
brand: "mr. pen"
price: "฿1050"
currency: THB
in_stock: true
reviews_count: 5
category: "Mr. Pen"
url: https://www.desertcart.co.th/products/256550075-3-pc-large-triangular-ruler-set-triangular-scale-11-30
store_origin: TH
region: Thailand
---

# 3 precision triangles 6 scale graduations on 12" ruler shatterproof high-impact plastic 3 Pc Large Triangular Ruler Set, Triangular Scale, 11" 30/60 and 8" 45/90 Triangles, Architectural Scale Ruler, Architect Triangular Scale, Set Squares, Geometry Ruler, BluePrint Scale Rulers

**Brand:** mr. pen
**Price:** ฿1050
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your design game with precision that lasts — don’t just measure, master it!

## Quick Answers

- **What is this?** 3 Pc Large Triangular Ruler Set, Triangular Scale, 11" 30/60 and 8" 45/90 Triangles, Architectural Scale Ruler, Architect Triangular Scale, Set Squares, Geometry Ruler, BluePrint Scale Rulers by mr. pen
- **How much does it cost?** ฿1050 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/256550075-3-pc-large-triangular-ruler-set-triangular-scale-11-30)

## 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

- • **Multi-Scale Mastery:** 12" architect ruler features 6 different scales for quick, precise measurements across projects.
- • **Permanent Graduations:** Clear, permanent imperial markings that won’t fade, keeping your measurements reliable over time.
- • **Triple Triangle Power:** Three versatile rulers covering 30/60°, 45/90°, and architectural scales for every design need.
- • **Precision Meets Durability:** Crafted from shatterproof, high-impact plastic ensuring long-lasting accuracy and resilience.
- • **Ergonomic Protractor Cutouts:** Center cutouts on triangles allow easy handling and accurate angle measurements without hassle.

## Overview

The Mr. Pen 3 Pc Large Triangular Ruler Set includes an 11" 30/60° triangle, an 8" 45/90° triangle with protractor cutout, and a 12" architect triangular scale featuring 6 different imperial scales. Made from shatterproof, high-impact plastic with permanent graduations, this set offers durable, precise tools ideal for architects, engineers, designers, and students seeking reliable, multi-functional measuring instruments.

## Description

Mr. Pen- 3 Pc Triangular Ruler Set Is Designed To Equip Architects, Engineers, Artists, Designers, Students, Teacher With The Right Tools for Various Projects. 11” Triangle 30/60 Degrees: Made from Transparent Durable PlasticPrecise Imperial GraduationCenter Cutout For Easy Finger Lifts8” Triangle 45/90 Degrees: Made from Transparent Durable PlasticPrecise Imperial GraduationProtractor Center Cutout For Easy Finger Lifts and Accurate Angle Measurement12” Architect Triangular Scale: Made From Shatterproof High-Impact PlasticDie Cut For Accuracy And DependabilityTapered Edges3/32, 3/16, 1/8, 1/4, 1/2, 1, 3/8, 3/4, 1 1/2, 3 inches to the foot Graduation; one edge to 16ths

Review: I needed this set for a small art project I had. I mainly got it because it had the best price. I am impressed with the quality of the set. It comes with large right triangles (set squares) and a triangular scale. All 3 pieces are of high quality. The set squares are thick, and hard to break. They are 30-60 and 45 degree triangles. The 30-60 one is graduated 11"x6" and the 45-90 one is graduated 8"x8". There is a protractor in the middle of 45-90 triangle which is pretty cool. The scale is also very sturdy. It will not break. It seems like the prints on it are permanent. It's an architectural scale and it's in imperial units. Over all I am very happy with this product and I recommend it to others also.
Review: Perfect for what I needed

## Features

- Package Includes 3 Piece: 11” 30/60 Triangle, 8” 45/90 Triangle, 12” Architect Triangular Scale
- Large Clear Triangles, High Quality and Sturdy, Protractor Center Cut Out
- 12" Triangular Architect's Ruler Features 3 Sides with 6 Different Scales
- Quick and Accurate Selection of the Desired Scale
- Shatterproof High-Impact Heavy Plastic Triangular Scale

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072M8JZ8R |
| Best Sellers Rank | #21,826 in Office Products ( See Top 100 in Office Products ) #128 in Rulers |
| Manufacturer | Mr. Pen |
| Manufacturer reference | SS03 |
| Product Dimensions | 30.48 x 30.48 x 0.1 cm; 200 g |

## Product Details

- **Brand:** Mr. Pen
- **Colour:** farblos
- **Graduation range:** 3 Milliliters
- **Material:** Plastic
- **Style:** Compact

## Images

![3 Pc Large Triangular Ruler Set, Triangular Scale, 11" 30/60 and 8" 45/90 Triangles, Architectural Scale Ruler, Architect Triangular Scale, Set Squares, Geometry Ruler, BluePrint Scale Rulers - Image 1](https://m.media-amazon.com/images/I/8182kiqFQ4L.jpg)

## Questions & Answers

**Q: is the architect's scale color coded or or all the sides red?**
A: The scale I received is color coded

**Q: How thick is the set squares?**
A: The thickness is about 0.1 inch.

**Q: What is the thickness of the triangle?**
A: Both the triangles are pretty thin. I'd say around 1/4" thick? Just an estimate, but I hope this helps!

**Q: Are increments for inches and centimeters in tenths?**
A: No.  Inches to 16th, centimeters to 8th

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***L on 14 June 2017*

I needed this set for a small art project I had. I mainly got it because it had the best price. I am impressed with the quality of the set. It comes with large right triangles (set squares) and a triangular scale. All 3 pieces are of high quality. The set squares are thick, and hard to break. They are 30-60 and 45 degree triangles. The 30-60 one is graduated 11"x6" and the 45-90 one is graduated 8"x8". There is a protractor in the middle of 45-90 triangle which is pretty cool. The scale is also very sturdy. It will not break. It seems like the prints on it are permanent. It's an architectural scale and it's in imperial units. Over all I am very happy with this product and I recommend it to others also.

### ⭐⭐⭐⭐⭐ Review
*by C***D on 3 November 2025*

Perfect for what I needed

### ⭐⭐⭐⭐⭐ Review
*by G***N on 8 March 2025*

I was surprised by the usefulness of this inexpensive set of ruling and measuring tools, for the price. When I worked in graphics, pre-computers, the 30/60 and 45 set squares were quite expensive, but they were the best available. Now that I have returned to live drawing, I needed to round out my new kit with far-less-expensive tools, but ones with which I can get studio drawing-quality results. My only concern with these tools was whether or not they would have ruling edges, meaning indents along the ruling edge so the ink in my pens do not bleed by capillary action. The 30/60 and 45 set squares have edges which taper gradually, so if you simply turn the square over, it presents a cavity along the edges, which work perfectly as a ruling edge. The three-sided drafting scale ruler cannot be used for ink ruling, but you have two tools for that already. I absolutely love the French curve cutout in the 30/60 set square, plus the protractor cutout in the 45 set squares. One note: the French curves and protractor cannot be used for ruling, but unless you are doing production graphics old school, you don’t need it. Personally, I love drawing such curves freehand, with just a light pencil rule as a guide. If this intimidates you, I guarantee that taking that first step will build your confidence. Even if you need to practice, freehand inking French and other curves will become a healthy addiction. To sum up, I am able to get professional results with a fairly inexpensive ruling toolkit. I love that 2 other tools have been incorporated, so 2 tools do the work of 4. I see no drawbacks, and the lack of ruling edges on the curves and protractor are more of a wish list kind of thing from a 35-years professional knowledge of advanced production graphics.

## Frequently Bought Together

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-10*