---
product_id: 286920502
title: "Metric Triangular Engineer Scale Ruler (Proffessional Grade Solid Aluminum) 30 Centimeters Metric Engineering Architectural Mechanical Drafting Ruler - 1:20, 1:25, 1:50 1:75, 1:100, 1:125"
brand: "ocm brand"
price: "$82.23"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/286920502-metric-triangular-engineer-scale-ruler-proffessional-grade-solid-aluminum-30
store_origin: EC
region: Ecuador
---

# 6 precise metric scales solid aluminum build concave base reduces smearing Metric Triangular Engineer Scale Ruler (Proffessional Grade Solid Aluminum) 30 Centimeters Metric Engineering Architectural Mechanical Drafting Ruler - 1:20, 1:25, 1:50 1:75, 1:100, 1:125

**Brand:** ocm brand
**Price:** $82.23
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your drafting game with precision and style!

## Quick Answers

- **What is this?** Metric Triangular Engineer Scale Ruler (Proffessional Grade Solid Aluminum) 30 Centimeters Metric Engineering Architectural Mechanical Drafting Ruler - 1:20, 1:25, 1:50 1:75, 1:100, 1:125 by ocm brand
- **How much does it cost?** $82.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/286920502-metric-triangular-engineer-scale-ruler-proffessional-grade-solid-aluminum-30)

## Best For

- ocm brand enthusiasts

## Why This Product

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

## Key Features

- • **Smudge-Free Mastery:** Innovative concave base minimizes pencil smears for cleaner, sharper drawings.
- • **Triangular Safety Edge:** Ergonomic triangular shape offers safer cutting and superior grip during use.
- • **Precision in Every Line:** Six professional metric scales (1:20 to 1:125) for flawless technical accuracy.
- • **Engineered for Professionals:** Ideal for architects, engineers, and designers demanding exact measurements.
- • **Built to Last, Designed to Perform:** Durable solid aluminum construction ensures longevity and premium feel.

## Overview

This professional-grade Metric Triangular Engineer Scale Ruler features six precise metric scales from 1:20 to 1:125, crafted from solid aluminum for durability. Its ergonomic triangular design with a concave base reduces pencil smearing and enhances safety during cutting, making it an essential tool for architects, engineers, and technical illustrators.

## Description

Metric Triangular Engineer Scale Ruler (Proffessional Grade Solid Aluminum) 30 Centimeters Metric Engineering Architectural Mechanical Drafting Ruler - 1:20, 1:25, 1:50 1:75, 1:100, 1:125

## Features

- SOLID ALUMINUM 30cm METRIC - Engineer, Mechanical, Architectural, Draftsman scale ruler with triangular body for safer cutting and scoring of materials.
- PRECISE SCALES - 1:20, 1:25, 1:50, 1:75, 1:100, 1:125. For professional applications, architecture, engineering, and technical Illustration
- PRECISION MARKED METRIC GRADATIONS (NOT IMPERIAL) - Easy-to-read printed gradations.
- 3 SIDES with 6 METRIC SCALES - Concave base reduces smearing when drawing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | OCM Brand |
| Part number | R12M |
| Item Weight | 90.6 g |
| Product Dimensions | 31.75 x 2.54 x 0.1 cm; 90.72 g |
| Item model number | OP-33808 |
| Color | Chrome |
| Style | Triangular Engineer Scale Ruler |
| Material | Aluminum |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Aluminum
- **Brand:** OCM Brand
- **Colour:** Chrome
- **Style:** Triangular Engineer Scale Ruler
- **Graduation range:** 30 Centimeters

## Images

![Metric Triangular Engineer Scale Ruler (Proffessional Grade Solid Aluminum) 30 Centimeters Metric Engineering Architectural Mechanical Drafting Ruler - 1:20, 1:25, 1:50 1:75, 1:100, 1:125 - Image 1](https://m.media-amazon.com/images/I/61yLzQN6wnL.jpg)

## Questions & Answers

**Q: Why is your 1:125 scale so far off? No QA department?**
A: You sure you are working in METRIC?

**Q: This is cm or inch?**
A: Cm/mm

## Frequently Bought Together

- OCM Metric Triangular Engineer Scale Ruler (Proffessional Grade Solid Aluminum) 30 Centimeters Metric Engineering Architectural Mechanical Drafting Ruler - 1:20, 1:25, 1:50 1:75, 1:100, 1:125
- Architectural Scale Ruler, Imperial Measurements 12'', Laser-Etched Aluminum Architect Triangular Ruler Black for Architects, Students, Draftsman, and Engineers by mveohos
- Intoy 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

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**Shop now:** [https://www.desertcart.ec/products/286920502-metric-triangular-engineer-scale-ruler-proffessional-grade-solid-aluminum-30](https://www.desertcart.ec/products/286920502-metric-triangular-engineer-scale-ruler-proffessional-grade-solid-aluminum-30)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-24*